Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

NRC Review > Systems > Flashcards

Systems Flashcards

1
Q
  • LOT 201.22 ESF*
    • *

What are the ESF support systems?

A

ECW cooling pond

ECW

CCW

ESF DG’s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

What PZR Level deviation will automatically turn on PZR B/U Heaters?

A
  • *+ 5% Level Deviation**
  • Controlling Channel Level (LT-465/467) > 5% above Program Level*

Done to preheat PZR insurge.

  • Note:*
  • Charging flow at +5% Level Deviation: 50 gpm
  • Charging flow at -5% Level Deviation: 300 gpm
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  • LOT 201.33 Non-Class DC*
    • *

How long will the Non-Class 1E batteries last on a loss of battery charger power?

A

2 hrs

Will fully recharge in 12 hrs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  • LOT 201.39 ESF DGs*
    • *

What pressure in the starting air receivers will make the ESF DGs INOPERABLE?

A

< 175 psig in BOTH

5 consecutive starts w/o recharge.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  • LOT 201.29 Fire Protection*
    • *

If the fire protection pump auto starts, what is the only thing that will trip the pump?

A

Mechanical Overspeed

Applies if pumps start on Low Header Pressure, Loss of power, or remote start from either control room. (CP018)

Note:
Cannot be stopped from control room.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
  • LOT 201.06 CVCS*
    • *

At what pressure will the low pressure letdown relief valve (CV-3201) lift?

A

300 psig

Relieves to VCT.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  • LOT 201.02 RCS*
    • *

What is Keff, RTP, and Tavg when the plant is in MODE 3?

A

Hot Standby:

  • Keff:*
  • *< 0.99**
  • RTP:*
  • *0%**
  • Tavg:*
  • *≥ 350 ˚F**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  • LOT 202.22 Circulating Water*
    • *

What will trip a CW pump?

A
  • Starting Pump:*
  • *Discharge MOV NOT moving after 24 sec**

Discharge MOV NOT ≥ 35% open in 32 sec

  • Stopping Last 2 CW Pumps:*
  • *Stopping 1 pump trips both**
  • Discharge valves remain open*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  • LOT 201.05 RCPs*
    • *

What is the flowrate and flowpath of the #3 Seal?

A
  • Flowrate:*
  • *800 cc/hr → 400 cc/hr (x2)**
  • Suction:*
  • *Seal Standpipe (RMW)**
  • Discharge:*
  • *CTMT Normal Sump (400 cc/hr)**
  • *RCDT (400 cc/hr)**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

At what pressure will the PZR PORV auto open signal blocked?

A

2185 psig

  • PCV-655A (PT-458)
  • PCV-656A (PT-457)

Tailpipe temperature for PORVs and Safeties on CP004. (PORV: TI-676 / Safeties: TI-677 - 679)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  • LOT 202.22 Circulating Water*
    • *

What is the CW pump securing sequence?

A
  • Third and Fourth Pumps:*
  • *Once Discharge MOV 80% Open, Pump Stops**

Discharge MOV fully Closes

  • First and Second Pumps:*
  • *Once 2nd pump’s Discharge MOV 95% Open, BOTH PUMPS TRIP**

Valves Remain As-Is (95% Open / Fully Open)

Must wait 5 mins between securing pumps

Note:
PTL:**Bypasses 5 min TD but Discharge MOVs will still fully close

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  • LOT 201.22 ESF*
    • *

What systems make up the ESF system?

A
  • RCS M/U:*
  • *ECCS**
  • HHSI, LHSI, SI, Accumulators*
  • S/G M/U:*
  • *Aux FW**
  • Containment:*
  • *Containment Isolation**
  • *Containment Heat Removal**
  • *Containment Combustible Gas Control**
  • HVAC:*
  • *EAB / CRE HVAC**
  • *FHB HVAC**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
  • LOT 202.10 Condensate*
    • *

What will auto open the GSS Condenser bypass valve (PDV-7020)?

A

GSS Condenser Inlet (MOV-084) closed

GSS Condenser Outlet (MOV-082) closed

Loss of IA / Electrical Power

  • *GSS Condenser D/P > 18 psid**
  • Resets at 5.5 psid*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  • LOT 201.37 Class 1E 125VDC*
    • *

How many battery chargers are in-service per channel on the Class 1E 125VDC system?

A

One Battery Charger

Class 1E battery charger output breakers are administratively controlled to prevent both breakers being closed at the same time. (Allowed for 15 mins for battery charger swapping)

  • Note:*
  • Non-Class 1E 125VDC has both battery chargers connected.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  • LOT 201.32 Non-Class 480V*
    • *

What provides control power to load centers?

A

125 VDC Control Power

MCCs provide their own control power.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
  • LOT 201.18 Rod Control*
    • *

What is the rod speed for each control rod during auto and manual control?

A

Control Banks:

  • *Terror 1.5 ˚F - 3 ˚F:**
  • *6 steps/min**
  • *Terror 3 ˚F - 5 ˚F:**
  • *Linear slope (6 - 72 steps/min)**
  • *Terror ≥ 5 ˚F:**
  • *72 steps/min**
  • *Manual:**
  • *68.5 steps/min**
  • S/D Banks:*
  • *68.5 steps/min**
    • Terror results in outward rod movement
    • Terrror results in inward rod movement
  • Note:*
  • Once ± 1.5 Terror reached rods with continue to shim until ± 1 Terror reached.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q
  • LOT 201.27 Containment Combustible Gas*
    • *

What provides power for the H2 recombiners and the H2 monitors?

A
  • H2 Recombiners:*
  • *MCCs E1B4/E1C2**
  • Not safety related*
  • H2 Monitors:*
  • *DP001/DP002**
  • H2 Monitor Blowers:*
  • *MCCs E1A4/E1C4**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q
  • LOT 201.19 DRPI*
    • *

What is the half accuracy of DRPI when channel B fails?

A

+4 / -10 Steps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q
  • LOT 201.06 CVCS*
    • *

At what pressure will the letdown relief valve (CV-3100) lift?

A

600 psig

Relieves to PRT.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q
  • LOT 201.39 ESF DGs*
    • *

How does the turning gear interlock prevent the ESF DG from starting?

A

Blocks starting air if turning gear not fully disengaged

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q
  • LOT 201.01 RCB*
    • *

Which containment radiation monitor is covered by tech specs to aid the operators in RCS leak detection? (LCO 3.4.6.1 RCS Leak Detection)

A

RCB Atmosphere Monitor RE-8011A (Particulate)

LCO 3.4.6.1 RCS Leak detection

Applicable in MODES 1 - 4

  • Note:*
  • RE-8011B (Iodine) and RE-8011C (Noble Gas) are non-safety related.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q
  • LOT 201.20 SSPS*
    • *

What Rx trips are defeated when the master relay defeat switch is in the “defeat/cvi available” or the “defeat all” positions?

A

SG Level - Low 2 (20%) [2/4 on 1/4]

  • *2 Urgent Alarms**
  • Alarms will still come in but no Rx Trip*
  • ≥ P-11 will trip the Rx (PZR Pressure ≥ 1985 psig) [2/3]
    • Prevents S/U with no ESF actuations
  • SR HV OFF disabled
    • Prevents loss of Source Range while S/D
  • ​Note:*
  • Must go through the Rx trip position to reach “defeat/cvi available” or “Defeat all” positions.
  • Must pull out switch to operate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q
  • LOT 201.39 ESF DGs*
    • *

What will auto start / stop the DC Standby Fuel Oil Pump?

A
  • Auto Start:*
  • *< 540 RPM w/ engine start signal**
  • Auto Stop:*
  • *≥ 540 RPM AND > 25 psig header pressure**

Power Supply: Non-Class 125VDC 1B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q
  • LOT 201.02 RCS*
    • *

What is Keff, RTP, and Tavg when the plant is in MODE 4?

A

Hot Shutdown:

  • Keff:*
  • *< 0.99**
  • RTP:*
  • *0%**
  • Tavg:*
  • *350 ˚F > Tavg > 200 ˚F**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q
  • LOT 201.02 RCS*
    • *

What is Keff, RTP, and Tavg when the plant is in MODE 6?

A

Refueling:

  • Keff:*
  • *≤ 0.95**
  • RTP:*
  • *0%**
  • Tavg:*
  • *≤ 140 ˚F**

Fuel in the Rx vessel w/ vessel closure bolts less than fully tensioned or head removed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q
  • LOT 202.44 QDPS*
    • *

The upper section of the APC-2 cabinets provide valve control for which valves?

A
  • *SG PORVs**
  • Manual AND Automatic*
  • *AFW throttle valves**
  • Automatic ONLY*
  • *Rx head vent valves**
  • Manual ONLY*

SG PORVs controlled from MCR AND ASP.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q
  • LOT 201.11 Containment Spray*
    • *

While in MODES 1 - 4, how much trisodium phosphate must there be in the containment baskets?

A

11,500 lbs - 15,100 lbs

LCO 3.6.2.2 Recirculation Fluid pH Control

Applicability: MODES 1 - 4

  • Note:*
  • 6 Baskets are in containment.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q
  • LOT 201.18 Rod Control*
    • *

What causes a rod control Logic Cabinet Urgent failure?

A
  • *Pulser Failure**
  • *Slave Cycle Input Failure**
  • Slave receive “Go” signal before last step done*
  • *Loose circuit card**
  • Stops Auto/Manual rod motion
  • Individual Bank rod motion will still work
  • Sends reduced current signal to affected group movable/stationary grippers
  • Note:*
  • Non-Urgent is a loss of 1 of the 6 power supplies and will not affect system operation.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q
  • LOT 201.39 ESF DGs*
    • *

What is the rated speed, power, and voltage of the ESF DGs?

A

600 RPM

  • *5500 kW (Continuous)**
  • 108% (83 days)*
  • 110% (7 days)*

4.16 kV ± 10%

  • Note:*
  • ESF DGs will restore power to Class 1E buses in 10 secs following a LOOP.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q
  • LOT 201.06 CVCS*
    • *

What are the gal/% thumb rules for the VCT and PZR?

A
  • PZR:*
  • *68.3 gal/%**
  • VCT:*
  • *33.9 gal/%**

Used to calculate leak rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q
  • LOT 201.33 Non-Class DC*
    • *

What powers the 125 VDC bus 1A and 250 VDC bus 1A battery chargers?

A

MCC 1G1

MCC 1G5 (BOP DG)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q
  • LOT 202.10 Condensate*
    • *

What is the minimum flow required through the GSS condenser?

A

5600 gpm

Ensured by FV-7022

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q
  • LOT 201.15 RCS Temperature Monitoring*
    • *

What are the RCS NR temperature instruments used for?

A
  • Tavg:*
  • *OT∆T**
  • *OP∆T**
  • *FW Isolation**
  • P-4 w/ Tavg - Low (574 ˚F)*
  • *P-12**
  • < 563 ˚F [2/4] Blocks steam dumps*
  • Auctioneered High Tavg:*
  • *Rod Control**
  • Indication on CP005 is Auctioneered Low Tavg*
  • *Steam Dumps**
  • *PZR Level Control**
  • Auctioneered Low Tavg:*
  • *C-17**
  • Auctioneered High ∆T:*
  • *Rod Insertion Limit**

3 in HL (120˚ apart for laminar flow concerns) and 1 in CL per loop.

Also has 3 fast response RTDs in CL per loop.

  • Note:*
  • 3 HL RTDs are averaged together to give signal. If 1 fails the system will automatically kick it out.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q
  • LOT 201.10 ECCS*
    • *

What will cause an SI auto recirculation signal?

A

SI Signal

AND

  • *RWST Level - Low 2 (≤ 75,000 gal) [1/1]**
  • Each lvl switch provides signal for it’s train only*

Closes HHSI AND LHSI pump mini-flow valves.

When ≥ 1 valve for each pump closed:

  • Opens containment sump → SI suction header Isolation valve.

RWST → SI suction header isolation valve must be manually closed by operator. (CP001)

  • Note:*
  • Reset and RWST lvl indication are located on CP001*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q
  • LOT 201.19 DRPI*
    • *

What is the accuracy of DRPI with no failed channels?

A

± 4 Steps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q
  • LOT 203.11 LWPS*
    • *

What water sources drain into the WHT?

A
  • Normal:*
  • *Primary Sample Drains**
  • 100 gpd*
  • *MAB Gravity Drains**
  • Filters / Demins*
  • Alternate:*
  • *RCDT**
  • *Containment Normal Sump**

WHT should only be going up ≈ 100 gpd.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q
  • LOT 202.41 Radiation Monitoring*
    • *

What are the safety related monitors on RM-23?

A

CR/EAB HVAC (RT-8033/8034)

SGBD (RT-8022 - 8025)

MSL (RT-8046 - 8049)

Unit Vent (RT-8010A/B)

Containment Atmosphere (RT-8011)

Containment Purge (RT-8012/8013)

High Range Containment Atmosphere (RT-8050/8051)

LWPS Discharge (RT-8038)

FHB HVAC (RT-8035/RT-8036) are on RM-23 but are no longer safety related.

  • Note:*
  • “A” Detectors powered from DP001 and “C” Detectors powered from DP002.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q
  • LOT 201.35 Non-Class DGs*
    • *

What loads does the BOP diesel supply?

A

Battery Chargers 125V/250V

IA Compressor 14

Turning gears for MFPs and Main Turbine

Bearing Oil Lift Pump

Air Side Seal Oil Pump

Feeds MCC 1G5

BOP, NTF, and Security LTG DGs: 480 VAC / 700 KW / 1800 RPM

  • Note:*
  • BOP DG Fuel Tank will last 60 mins
  • Auto Starts on loss of voltage, comes up to speed and closes breaker in 15 seconds
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q
  • LOT 202.33 RCB HVAC*
    • *

When must Rx cavity and supports ventilation be in operation?

A

RCS > 350 ˚F

One train required.

Note:
Should be operating at ≥ 150 ˚F but _must_ be operating at ≥ 350 ˚F.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q
  • LOT 202.14 SG Feedwater Pumps*
    • *

If the SGFPT’s speed is > 1500 RPM and < 3300 RPM and the raise pushbutton is released, what happens to the SGFPT’s speed?

A

Lowers back to 1500 RPM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

What is the basis for the size of the PZR?

A
  • Enough Water:*
  • *Keep Heaters covered during step load increase of 10%**
  • Enough Steam:*
  • *Accomodate 50% load reduction w/o reaching PZR LVL - High (92%)**
  • w/ Rods and Steam Dumps*
  • *After PZR LVL - High (92%) Rx trip, will not lift safety valves**
  • After Rx Trip AND Turbine Trip:*
  • *No SI**
  • *PZR will not empty**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q
  • LOT 202.17 MG / Exciter*
    • *

What are the admin limits for MVARs in (+pf) and MVARs out (-pf)?

A
  • MVARS in:*
  • *90 MVARs**
  • Gen Limit is 100 MVARs in*
  • MVARS out:*
  • *450 MVARs**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q
  • LOT 201.02 RCS*
    • *

What are the piping penetrations off the cold legs?

A
  • Loop 1:*
  • *PZR Spray**
  • *SI Train “A” Injection** / RHR “A” Return
  • Same Penetration*
  • *Normal Charging**
  • Loop 2:*
  • *SI Train “B” Injection** / RHR “B” Return
  • Same Penetration*
  • Loop 3:*
  • *SI Train “C” Injection** / RHR “C” Return
  • Same Penetration*
  • *CVCS Alternate Charging**
  • Loop 4:*
  • *PZR Spray**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q
  • LOT 201.06 CVCS*
    • *

At what pressure will the VCT relief valve (CV-3101) lift?

A

75 psig

Relieves to the RHT.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

What drains directly into the RCDT?

A
  • *RCP Seal #2 Leakoff**
  • *CVCS Valve Stem Leakoffs**
  • *Flange Leakoff**
  • *Excess Letdown**
  • Alternate Path*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q
  • LOT 201.10 ECCS*
    • *

When must all HHSI pumps be inoperable per tech specs?

A
  • *MODE 5**
  • *MODE 6 w/ Rx Vessel Head on**

LCO 3.5.3.2 ECCS Subsytems - Tavg ≤ 200 ˚F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q
  • LOT 201.27 Containment Combustible Gas*
    • *

How is H2 lowered during a DBA LOCA?

A
  • *One Recombiner in Service**
  • ↓ H2 < 4%*
  • Place in-service at 3.5%*
  • *Purge containment through supplementary containment purge subsystem**
  • ↓ H2 < LCL*
  • Available once containment pressure ≈ atmospheric*

H2 Recombiner controlled from CP002

Containment Supplementary Purge is controlled from CP022

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q
  • LOT 201.41 ESF Load Sequencer*
    • *

What are the different modes of the ESF sequencers?

A
  • *MODE I: SI Signal**
  • ≥ 4 of 6 slave relays from ESF actuation cabinets giving SI signal*
  • *MODE II: LOOP**
  • UV on 4.16 kV bus [2/4]*
  • *MODE III: SI AND LOOP**
  • Conditions for MODE I and MODE II exist*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q
  • LOT 201.10 ECCS*
    • *

What are the Emergency Core Cooling System (ECCS) acceptance criteria?

A

Coolable Geometry

Long-Term cooling

Cladding Oxidation
≤ 17% the total cladding thickness before oxidation.

  • *Peak Cladding Temperature**
  • ≤ 2200 ˚F*
  • *H2 Generation**
  • ≤ 1% the total amount of H2 produced from all metal surrounding the fuel reacting*
  • (excludes metal around plenum volume)*

DBAs:

  • LOCA
  • SLB
  • Fuel Handling Accident
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q
  • LOT 201.09 RHR*
    • *

Which RHR trains are used to transfer refueling water from the refueling cavity to the RWST at the end of a refueling operation?

A

RHR Train “B”

RHR Train “C”

Flow is controlled by throttling the respective train IRC or ORC isolation valve to the RWST

Note:
Do not use train that is selected for shutdown cooling.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q
  • LOT 201.10 ECCS*
    • *

What will auto open the accumulator discharge valve? (MOV-039)

A

SI

  • *RCS Pressure ≥ P-11**
  • PZR Pressure ≥ 1985 psig [2/3]*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q
  • LOT 202.13 Feedwater*
    • *

How does the Deaerater MS Supply valves (PV-7174 / PV-7174A) behave during a large load rejection?

A

Opens and Pegs DA Pressure to preloss pressure for 6.3 mins

Open Permissives:
NO P-4
NO SI
NO P-14

  • Maintains FWBP NPSH
  • Minimizes flashing
  • Note:*
  • DA Pressure compared to Auctioneered High FWBP Temp (PSat) (Modulates Valves)
  • DA Pressure / Rate compared to crossover piping pressure (Detects loss of load)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q
  • LOT 201.10 ECCS*
    • *

In order for the RWST to be OPERABLE in MODES 1 - 4, what must water volume and boron concentration be?

A

≥ 458,000 gallons

2800 ppm - 3000 ppm

LCO 3.5.5 RWST

Applicable: MODES 1 - 4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q
  • LOT 201.37 Class 1E 125VDC*
    • *

What powers the Class 1E 125VDC Buses (E1A11/E1B11/E1C11/E1D11)?

A
  • Channel I:*
  • *E1A11: E1A1 / E1A2**
  • Channel II:*
  • *E1D11: E1A4 / E1A1**
  • Channel III:*
  • *E1B11: E1B1 / E1B2**
  • Channel IV:*
  • *E1C11: E1C1 / E1C2**

1 2 4 1 1 2 1 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q
  • LOT 202.01 S/G*
    • *

When will the SG Safeties lift?

A

1285 psig ± 3%

1295 psig ± 3%

1305 psig ± 3%

1315 psig ± 3%

1325 psig ± 3%

  • Limits SG pressure to 110% (1413.5 psig) of design pressure (1285 psig) during most severe system transient.
  • Located in IVC 58’

Note:
Relieves to atmosphere (Roof)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q
  • LOT 201.43,44,45 Refueling Operations*
    • *

What conditions will make the operator secure a core alteration?

A

Loss of communications with the MCR

Loss of audible count rate in the MCR or RCB

SR NI counts double on both

SR NI Counts ↑ 5x on 1 SR Detector

RHR changes by 10 ˚F or 25 ppm boron

  • *RCS < 2800 ppm boron**
  • Systems that are connected to RCS (Cavity/SFP/RHR)*

Water not clear enough

  • *High SFP Temperature**
  • Plant Curve Book (118 ˚F)*

Load Limits on Refueling Machine/Aux Hoist exceeded

Communications between FHB/RCB control consoles, Refueling Machine, Fuel Handling Machine, and Rx Engineer in MCR required.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

What drains into the PRT?

A
  • *RHR Pump Discharge Relief (3)**
  • 600 psig*
  • *HHSI Pump Discharge Relief (3)**
  • 1750 psig*
  • *LHSI Pump Discharge Relief (3)**
  • 600 psig*
  • *Safety Valves (3)**
  • 2485 psig ± 1% [+ 2% / - 3% (LCO 3.4.2.2)]*
  • *PORVs (2)**
  • 87.5% on controller / 2335 psig*
  • *Seal #1 Return Relief (1)**
  • 150 psig*
  • *CVCS Letdown Relief (CV-3100)**
  • 600 psig*
  • *Head Vents**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

How many RCPs are required for PZR Spray?

A
  • *RCP 1A ONLY**
  • *OR**
  • *RCP 1D ONLY**
  • *OR**
  • *RCPs 1B AND 1C**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q
  • LOT 201.05 RCPs*
    • *

What is the pressure, flowrate, and flowpath of the #2 Seal?

A
  • Pressure:*
  • *30 psig → 10 psig**
  • Flowrate:*
  • *3 gpm → 3 gph**
  • Suction:*
  • *Seal #1**
  • Discharge:*
  • *RCDT**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q
  • LOT 202.14 SG Feedwater Pumps*
    • *

If the SGFPTs speed is raised above 600 RPM and then speed is then reduced, what speed will trip the SGFPT?

A

450 RPM

Once SGFPT’s speed > 3300 RPM, cannot lower < 3300 RPM

  • Note:*
  • Trip Enabled when SGFPT is raised above 600 RPM OR LP GOV demand Signal > 100%.
  • Trip Blocked when speed < 400 RPM AND SGFPT tripped.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q
  • LOT 201.12 CCW*
    • *

What will cause the thermal barrier isolation valve to shut?

A

CCW Flow - High (60 gpm)

CCW Temp - High (187 ˚F)

Protects CCW piping from thermal barrier HX leak.

Switches located on CP004.

Two in-line backpressure sensing valves provide backup

  • Start to close at 120 psig
  • Full close at 150 psig
  • Note:*
  • Backpressure sensing valves auto-reset when pressure drops below setpoint*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q
  • LOT 201.10 ECCS*
    • *

How do you place ECCS in-service during a plant heatup from cold shutdown?

A
  • Mode 5:*
  • *ALL HHSI pumps inoperable**
  • *SI not blocked**
  • Before Entering MODE 4:*
  • *Open ALL HHSI CL injection valves**
  • *2 trains of LHSI OPERABLE**
  • Within 4 hrs of going > 200 ˚F and before exceeding 225 ˚F:*
  • *1 HHSI OPERABLE and 1 HHSI in Standby**
  • Before Entering MODE 3 (350 ˚F):*
  • *ALL LHSI OPERABLE**
  • Within 4 hrs of going > 350 ˚F and before exceeding 375 ˚F:*
  • *ALL HHSI OPERABLE**
  • 900 psig - 1000 psig:*
  • *ALL Acummulators OPERABLE**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q
  • LOT 201.11 Containment Spray*
    • *

What does the Trisodium Phospate baskets maintain the pH of the ECCS water at during a DBA?

A

7.0 - 9.5

  • 7.0 Basis: Retention of Iodine in sumps
  • 9.5 Basis: Chloride stress corrosion cracking of stainless steel
  • Note:*
  • Initial pH of ECCS is as low as 4.5.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q
  • LOT 201.19 DRPI*
    • *

What will cause a rod bottom alarm?

A

ALL S/D and control banks on bottom

  • *ANY S/D rod OR Control Bank A rod on bottom**
  • Occurs after ALL S/D rods on top and CB “A” 12 steps off bottom*
  • *ANY Control Bank B/C/D rod on bottom**
  • Occurs after respective bank 12 steps off bottom*
  • Note:*
  • Rod Bottom alarm will clear when all S/D rods on top and CB “A” rods 12 steps off bottom.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q
  • LOT 201.42 SFP Cooling*
    • *

Where can the SFP discharge water to?

A
  • *RHUTs**
  • Only procedurally defined method*
  • *RWST**
  • *Waste monitor tanks**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q
  • LOT 201.31 13.8 kV / 4.16 kV Electrical*
    • *

What happens if you are paralleling across a 13.8 kV tie breaker and forget to open the breaker?

A
  • 1F / 1G / 1H Tie - STBY*
  • *15 sec alarms**
  • *30 sec opens the tie breaker**
  • *30.5 sec opens Aux / STBY incoming breakers AND the ESF Feeder Breakers**
  • 1F / 1G / 1H STBY - STBY*
  • *15 sec alarms**
  • *30 sec opens other unit’s STBY Breaker**
  • *30.5 sec opens Tie / Unit’s STBY incoming breakers AND the ESF Feeder Breakers**
  • Does NOT open Aux incoming breaker*
  • 1J AUX - STBY*
  • *15 sec alarms**
  • *30 sec opens Aux Breaker**
  • *30.5 sec both STBY incoming breakers trip**
  • 1J STBY - STBY*
  • *15 sec alarms**
  • *45 sec opens other unit’s STBY Breaker**
  • *45.5 opens unit’s STBY breaker and AUX breaker**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q
  • LOT 201.02 RCS*
    • *

What are the piping penetrations off the intermediate legs?

A
  • Loop 1:*
  • *Drain to RCDT**
  • Loop 2:*
  • *Drain to RCDT**
  • Loop 3:*
  • *Drain to RCDT**
  • *CVCS Letdown**
  • Loop 4:*
  • *Drain to RCDT**
  • *CVCS Excess Letdown**

Loop drains go to suction of RCDT pumps. Do NOT go directly to RCDT.

  • Note:*
  • Flange leakoff goes directly to RCDT.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q
  • LOT 202.09 Steam Dumps*
    • *

What causes the #1 and #2 solenoids to de-energize?

A

P-12: Tavg < 563 ˚F [2/4]

Two redundant channels. One for each solenoid.

Can bypass P-12 for Bank #1 Steam Dumps by placing switches on CP007 to Bypass Interlock. (Spring returns to ON)

  • Must take switch to OFF/RESET to secure C/D feature.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q
  • LOT 201.18 Rod Control*
    • *

What is the RDMG’s output voltage and frequency?

A

260 VAC

59 Hz

Prevents alternate power supply connection

  • Note:*
  • Control switches to operate RDMGs are on local control panel only.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q
  • LOT 201.12 CCW*
    • *

What CCW loads isolate when the CCW Surge tank reaches 64.6%? (1st Low Level Isolation)

A
  • HXs:*
  • *Letdown HX**
  • *Excess Letdown HX**
  • *RCDT HX**
  • Evaporators:*
  • *Boron Recycle Evaporator**
  • *LWPS Evaporator**
  • Sample Coolers:*
  • *Boric Acid Sample Cooler**
  • *Primary Sample Coolers**
  • Radiation Monitors:*
  • *S/G Blowdown Rad Monitor**
  • *BRS Rad Monitor**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q
  • LOT 201.16 Excore NIs*
    • *

When removing the control power fuses and instrument power fuses, which should be removed first?

A

Instrument Power Fuses then Control Power Fuses

If control power removed first, then Rx trip or Rod control stop could occur.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q
  • LOT 202.14 SG Feedwater Pumps*
    • *

When does the SGFPTs trip on overspeed?

A
  • Electrical Overspeed:*
  • *5730 RPM (106%)**
  • Mechanical Overspeed:*
  • *5940 RPM (110%)**
    • 109 / - 50 RPM*
  • Normal Speed: 5400 RPM
  • Critical Speed: 2500 RPM
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q
  • LOT 201.09 RHR*
    • *

Which pressure transmitters provide the open permissive for the RHR Suction Valves? (MOV-060/MOV-061)

A
  • RHR Train “A”:*
  • *MOV-060A: PT-405**
  • *MOV-061A: PT-406**
  • RHR Train “B”:*
  • *MOV-060B: PT-406**
  • *MOV-061B: PT-407**
  • RHR Train “C”:*
  • *MOV-060C: PT-407**
  • *MOV-061C: PT-405**

Power Supplies:

  • PT-405: Train “A”
  • PT-406: Train “B”
  • PT-407: Train “C”
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q
  • LOT 201.42 SFP Cooling*
    • *

With regards to tech specs, what is the minimum water level of the SFP?

A

23 ft above the fuel assemblies

Bases: Minimum water level ensures 99% of the iodine gap activity released from a ruptured assembly will be removed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
75
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

Where does the RCDT relief valve relieve to?

A

Containment Normal Sump

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
76
Q
  • LOT 202.13 Feedwater*
    • *

What will trip a SUFW pump?

A

SUFW Lube Oil Pressure < 5 psig

  • *FW Isolation**
  • SI OR P-14 ONLY*

NPSH < 80 psid

  • *Undervoltage**
  • 1H Standby Bus*

Phase Differential

Overcurrent

On SUFW Trip:

  • Discharge MOV / Non-Return close (Signal sent for 160 sec)
  • Recirc Valve Closes (Signal sent for 5 sec)
  • Aux cooling pumps start
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
77
Q
  • LOT 201.02 RCS*
    • *

What is Keff, RTP, and Tavg when the plant is in MODE 1?

A

Power Operation:

  • Keff:*
  • *≥ 0.99**
  • RTP:*
  • *> 5%**
  • Tavg:*
  • *≥ 350 ˚F**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
78
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

What is the maximum spray line ∆T allowed by the TRM?

A

621 ˚F

TRM 3.4.9.2 PZR Temperature Limits

Applicable: At all times

  • Note:*
  • By procedure limited to 320 ˚F*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
79
Q
  • LOT 201.19 DRPI*
    • *

What will cause a DRPI Non-Urgent Alarm?

A

Data A OR Data B failure

Any test switch out of normal

1 or 2 timing and data cards failed/loose **

Rod Deviation Cards disagree**

12VDC P/S Failure**

Generates a RPI Trouble Alarm (CP005).

  • Note:*
  • The general warning light will actuate for any urgent or non-urgent alarm condition, except P/S Failure, Rod Deviation, or Timing and Data card disconnect.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
80
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

What is the setpoint the PZR Safety valves?

A
  • *2485 psig ± 1%**
    • 2% / - 3% (LCO 3.4.2.2)*

3 safety valves

Keeps RCS ≤ 2735 psig w/:

  • Turbine Trip w/ NO Rx Trip
  • PORVs do NOT operate
  • Steam dumps do NOT operate
  • Note:*
  • Relieves to PRT*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
81
Q
  • LOT 202.41 Radiation Monitoring*
    • *

Where can RM-11 be read from?

A

MCR

HP

TSC

Computer Room

  • HP, TSC, and Computer room can only use “User Mode.” (Data Retrieval/acknowldeging alarms)
  • MCR normally uses “Windows Supervisor Mode.” (Allows non-tech spec parameters to be monitored)
  • “RM-11 Supervisor Mode” can only be used in MCR and requires password. (Allows changing of setpoints)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
82
Q
  • LOT 201.02 RCS*
    • *

What is Keff, RTP, and Tavg when the plant is in MODE 5?

A

Cold Shutdown:

  • Keff:*
  • *< 0.99**
  • RTP:*
  • *0%**
  • Tavg:*
  • *≤ 200 ˚F**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
83
Q
  • LOT 202.33 RCB HVAC*
    • *

How many Rx Containment Fan Coolers (RCFC) are required to be operating?

A

4 of 6 units
LCO 3.6.2.3 Containment Cooling
5 of 6 units OPERABLE

Keeps containment ≤ 110 ˚F during normal operation and during spray. (LCO 3.6.1.5 Containment Air Temperature)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
84
Q
  • LOT 201.10 ECCS*
    • *

At what RCS pressures will the ECCS Accumulators, HHSI pumps, and LHSI pumps inject into the RCS Cold Legs?

A
  • HHSI:*
  • *< 1600 psig**
  • Accumulators:*
  • *590 - 670 psig**
  • LHSI:*
  • *< 300 psig**

Receive water from RWST.

  • Note:*
  • During DBA, Accumulators will inject 1st.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
85
Q
  • LOT 203.14 GWPS*
    • *

What are the principle isotopes of concern for the GWPS?

A

Kr-85

Xe-133

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
86
Q
  • LOT 203.11 LWPS*
    • *

What is the function of the WHT?

A

Collects Reactor Grade leakage and other tritiated and aerated water sources

  • Note:*
  • Non-Reactor Grade water goes to Condensate Polishing Regeneration Waste Collection Tank (George Tank)*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
87
Q
  • LOT 201.39 ESF DGs*
    • *

What will auto start the standby lube oil pump?

A
  • Auto Start:*
  • *≥ 540 RPM AND < 35 psig header pressure**

Once started must manually secure pump

Powered: Class 1E 480V MCC

  • Same as standby JW pump
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
88
Q
  • LOT 201.06 CVCS*
    • *

What will generate a letdown valves sequence incorrect alarm?

A

Shutting MOV-465 OR MOV-468 prior to FV-011

Switches located on CP004.

  • Note:*
  • FV-011 shuts first to prevent water hammer in the regenerative HX.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
89
Q
  • LOT 201.12 CCW*
    • *

What happens to the CCW system during a LOOP?

A
  • *RHR HX Outlet Valve opens**
  • *DWS Makeup to CCW Surge tank closes**
  • *RCB Chilled Water Isolates to RCFCs**
  • *RCDT HX Isolates**
  • *Train “B” / Train “C” CCP X-Conn Closes**
  • Supply and Return*
  • *One CCW return header isolation closes**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
90
Q
  • LOT 201.12 CCW*
    • *

What will happen in the CCW system when the CCW Surge tank reaches 61.5%? (2nd Low Level Isolation)

A
  • *Isolates CCW Header**
  • Isolates RCP Upper/Lower Bearing Coolers, Thermal Barrier, RCP Motor Air Coolers, SFP HX, PASS Coolers*

CCW Train “B” → CCP “B” and Seal Water HX

CCW Train “C” → CCP “A” and PDP

  • *Opens RHR Outlet Valves for running CCW Pumps ONLY**
  • Min flow requirements*
  • Note:*
  • As soon as CCW common header isolated, standby CCW pump will start on CCW Header Pressure - Low (76 psig)*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
91
Q
  • LOT 202.13 Feedwater*
    • *

How is DA level control achieved?

A
  • Manual:*
  • *Used when < 5% Feed Flow**
  • Single Element:*
  • *Used 5% - 20% Feed Flow**
  • *DAST Level ONLY**
  • Average of DST #1/#2 Level compared to LK-7406 setpoint (CP008)*
  • Three Element:*
  • *Used > 20% Feed Flow**
  • *DAST Level**
  • Average of DST #1/#2 Level compared to LK-7406 setpoint (CP008)*
  • *Feed Flow compared to Condensate Flow**
  • Sum of all 4 feed flows*

Controls CD-7406A (Low Flow) [<40%] and CD-7406 (High Flow) [≥ 40%] (Switch at 40% is automatic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
92
Q
  • LOT 203.14 GWPS*
    • *

What is the GWPS O2 limit IAW TRM 3.11.2.5 Explosive Gas Mixture?

A

3%

TRM 3.11.2.5 Explosive Gas Limit

Applicability: At all times

Placing inlet (FV-4657) OR outlet (FV-4671) handswitches in OPEN causes O2 sensor to become inoperable.

  • Note:*
  • 0%-5% range normally selected because system trip will occur at 20% of scale (1%).
  • If 0%-25% range selected, trip would be 5% (Above TRM limit)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
93
Q
  • LOT 201.13 ECW*
    • *

What will auto start/stop the ECW pumps?

A
  • Auto Start:*
  • *ESF DG Sequencer (25 Sec)**
  • MODES I, II, III*
  • *CCW Header Pressure - Low (76 psig) [15 sec TD]**
  • *ECW Header Pressure - Low (30 psig) [2/3] [15 sec TD]**
  • Low Pressure on other two trains*
  • Auto Stop:*
  • *Discharge Valve not 95% open after 25 sec**
  • N/A for SI*
  • Note:*
  • 15 Sec TD is to prevent inadvertant train S/U during transient conditions.
  • Discharge valve must be open after 25 sec b/c ECW pump does not have a recirc line to protect the pump
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
94
Q
  • LOT 201.19 DRPI*
    • *

What is the half accuracy of DRPI when channel A fails?

A

-4 / + 10 Steps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
95
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

How many PZR heaters are there and what is the KW rating / heater?

A

117 Heaters

  • *17.95 KW / Heater**
  • 2101 KW Total*

LCO 3.4.3 PZR

Applicable MODES 1-3

  • Requires 2 groups (A/B) w/ 175 KW each
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
96
Q
  • LOT 201.19 DRPI*
    • *

What will cause a rod deviation alarm?

A
  • *Control Bank misalignment of ± 12 steps**
  • Any rod and bank*

S/D Banks > 18 steps from full out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
97
Q
  • LOT 201.36 Class 1E 4.16kV/480V*
    • *

What is powered from the Class 1E 4.16 kV Buses (E1A, E1B, E1C)?

A
  • Common to all: (Makes Sense)*
  • Spells Leaches*
  • *LHSI (A/B/C)**
  • *ECW (A/B/C)**
  • *AFW (1/2/3)**
  • *CCW (A/B/C)**
  • *HHSI (A/B/C)**
  • *EAB Essential Chiller (A/B/C)**
  • *Containment Spray (A/B/C)**

Different: (Doesn’t Make Sense)

  • E1A:* CCP 1B
  • E1C:* CCP 1A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
98
Q
  • LOT 201.16 Excore NIs*
    • *

What powers the excore NIs?

A
  • Source Range:*
  • *DP1201/DP1202**
  • Intermediate Range:*
  • *DP1201/DP1202**
  • Power Range:*
  • *DP1201 - DP1204**
  • Extended Range:*
  • *DP001/DP002**
  • Loss of power, NIs fail High.
  • If still in SR or IR, Rx will trip if DP-1201/1202 are lost.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
99
Q
  • LOT 201.05 RCPs*
    • *

What must pressure in the bearing oil lift system be in order to start a RCP?

A

600 psig

  • Blue permissive light on CP005
  • Bearing Oil pump must be running to start pump. (Not required for light however)
  • Must be operated for ≥ 2 mins by procedure prior to starting RCP.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
100
Q
  • LOT 202.28 AFW*
    • *

What will auto start the AFW pumps?

A
  • Motor Driven:*
  • *SG Level - Low 2 (20%) [2/4 on 1/4]**

AMSAC (15%) [1/1 on 3/4] [25 sec TC]

  • *Sequencers (MODE I,II,III)**
  • MODE II starts pump but valves do NOT open*
  • Turbine Driven:*
  • *SG Level - Low 2 (20%) [2/4 on 1/4]**

AMSAC (15%) [1/1 on 3/4] [25 sec TC]

SI

Regulating Valves throttle and OCIVs open for:

  • SG Level - Low 2 (20%) [2/4 on 1/4]
  • AMSAC (15%) [1/1 on 3/4] [25 sec TC]
  • SI
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
101
Q
  • LOT 202.13 Feedwater*
    • *

What causes a Feedwater Isolation Signal?

A
  • P-4 True:*
  • *Tavg - Low (574 ˚F) [2/4]**
  • No Permissives:*
  • *SI**
  • *P-14**
  • S/G Level - High (87.5%) [2/4 on 1/4]*

P-4 True: Rx Trip [1/2] AND Bypass Bkr [1/2] open

  • Note:*
  • Closes FWIVs, bypasses, FRVs, Low FRVs, and PBVs
  • Trips MFP turbines, SUFW, and the Turbine. (SI AND P-14 ONLY)
  • Does NOT trip the FW Booster pumps
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
102
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

Which PZR Pressure instrument does not tie into P-11?

A

PT-458

P-11: PZR Pressure ≥ 1985 psig [2/3]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
103
Q
  • LOT 203.11 LWPS*
    • *

For an unprotected outdoor tank, what is activity limited to? (LCO 3.11.1 Liquid Holdup Tanks)

A
  • *≤ 10 Curies**
  • Excludes Tritium and entrained Noble Gases*

LCO N/A to WMT D/E/F b/c they have a berm.

Used for temporary tanks.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
104
Q
  • LOT 202.13 Feedwater*
    • *

What supplies steam to the deaerator?

A

Aux Steam
Used During S/U
Switch on CP008

  • *Main Steam**
  • Used < 25% and during load rejection*

Extraction Steam
8th stage of HP turbine (25% - 100%)
Supplied from 2 of 6 crossunder piping

105
Q
  • LOT 201.31 13.8 kV / 4.16 kV Electrical*
    • *

What are some major loads powered from the 1D Loadcenters?

A
  • *RCB Chillers**
  • 11A (1D1) / 11B/C (2D2)*
  • *MAB Chillers**
  • 11A/B (1D1) / 11C/D (2D2)*
  • *OLACW Pumps**
  • 11 (1D2) / 12 & 13 (1D1)*
  • *Low Pressure Heater Drip Pumps**
  • 11 (1D1) / 12 & 13 (1D2)*
  • *BTRS Chiller**
  • May or May not be abandoned*
106
Q
  • LOT 201.06 CVCS*
    • *

With regards to LT-112 and LT-113, how is level controlled in the VCT?

A
  • 95%*
  • *112A Full Divert**
  • LT-112 AND LT-113*
  • *Alarm**
  • LT-113*
  • 68% - 95%*
  • *112A modulates diverting to RHT**
  • LT-112*
  • 48%*
  • *Stops Auto M/U**
  • LT-112*
  • 28%*
  • *Starts Auto M/U**
  • LT-112*
  • 15%*
  • *Alarm**
  • LT-112 AND LT-113*
  • 3%*
  • *Shifts CCP suction from VCT to RWST (112C / 113B)**
  • *Isolates VCT outlet (112B / 113A)**
  • LT-112 AND LT-113*
107
Q
  • LOT 201.38 Class 1E 120VAC*
    • *

What powers the class 1E 120V distribution panels (DP001/DP002, DP1201/DP1202/DP1203/DP1204)?

A
  • DP001:*
  • Primary / Secondary / Battery*
  • *E1A1 / E1A1 / E1A11**
  • DP1201:*
  • Primary / Secondary / Battery*
  • *E1A2 / E1A1 / E1A11**
  • DP1202:*
  • Primary / Secondary / Battery*
  • *E1A4 / E1A4 / E1D11**
  • DP1203:*
  • Primary / Secondary / Battery*
  • *E1B1 / E1B1 / E1B11**
  • DP1204:*
  • Primary / Secondary / Battery*
  • *E1C4 / E1C2 / E1C11**
  • DP002:*
  • Primary / Secondary / Battery*
  • *E1C2 / E1C2 / E1C11**
  • Note:*
  • Primary source is through the inverter / rectifier. Secondary is through the VRT.*
108
Q
  • LOT 201.43,44,45 Refueling Operations*
    • *

What is the definition of core alterations?

A
  • Movement of:*
  • *Fuel**
  • *Sources**
  • *Reactivity Control Components**
  • Excludes RCCAs attached to integrated head*
  • Applicable:*
  • *Head Removed**
  • *Fuel in Core**
109
Q
  • LOT 201.43,44,45 Refueling Operations*
    • *

How long must the reactor be shutdown prior to removing fuel?

A

100 hrs

TRM 3.9.3 Decay Time

Applicable: During movement of irradiated fuel in the Rx Vessel

110
Q
  • LOT 201.22 ESF*
    • *

What accident(s) is ESF designed to protect against?

A
  • *LOCA**
  • Double guillotine shear of cold leg*
  • *Rod Ejection**
  • Most reactive control rod*
  • *MSL Break**
  • Double ended shear of largest piping*

Fuel Handling Accident

111
Q
  • LOT 203.11 LWPS*
    • *

Where does each tank in the LWPS get pumped to?

A
  • WHT:*
  • *FDT (CPRWCT)**
  • Uses Demins/Filters*
  • CPRWCT:*
  • *FDT**
  • Only Strainers*
  • Surge Tanks:*
  • *FDT (CPRWCT)**
  • Only Strainers*
  • LHST:*
  • *WMT C**
  • Only Strainers*
  • FDT:*
  • *WMT D/E/F**
  • Strainers / ALPS*
  • RHTs:*
  • *WMT D/E/F**
  • ALPS*
112
Q
  • LOT 201.31 13.8 kV / 4.16 kV Electrical*
    • *

What provides control power for the RCP breakers?

A

125 VDC Bus 1B

Feeder breakers for the 13.8 kV Aux Buses are from the 125 VDC Bus 1A.

Precludes the possibility of losing both primary and backup protection of the containment penetration conductors for the RCPs?

113
Q
  • LOT 202.17 MG / Exciter*
    • *

What does the different lights on the generator status mean?

A
  • Green:*
  • *Off**
  • Auto Regulator de-energized, Base Adjust on Service*
  • Amber:*
  • *Test**
  • Auto Regulator energized with output to null meter*
  • Red:*
  • *On**
  • Auto Regulator in service*
114
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

At what PZR level will the heaters trip off?

A
  • *17% [1/2]**
  • LT-465/467 OR LT-466/467*
  • Backup heaters will turn back on if in auto once PZR LVL > 17%. [2/2]
  • Control Heaters have to be cycled off and then back to on.
  • Note:*
  • For LOOP / SI, B/U heaters control switch must be cycled to turn back on.*
115
Q
  • LOT 201.11 Containment Spray*
    • *

The containment spray system will remove enough heat to keep containment pressure less than the design pressure (56.5 psig) with how many RCFCs running?

A

3 of 6 RCFCs

  • Note:*
  • Need 2 of 3 CS pumps*
116
Q
  • LOT 202.28 AFW*
    • *

What is the major concern when cross-connecting AFW trains?

A

Runout of Pump (675 gpm)

Will not see on flow meters

117
Q
  • LOT 203.09 Condensate Polishing*
    • *

What will auto open the CP bypass valve (MOV-132)?

A

High D/P across demins (105 psig)

Controlled from CP008 (Open/Shut) and locally (Can Jog)

118
Q
  • LOT 201.33 Non-Class DC*
    • *

What is powered by 250 VDC Bus 1A?

A

TG Lube Oil EOP

Air Side Seal Oil Back-up Pump

SGFPT Emergency Oil Pumps

Generator Breaker Control Panel/Power

119
Q
  • LOT 201.36 Class 1E 4.16kV/480V*
    • *

Which XFMR(s) have an automatic load tap changer?

A
  • *UATs**
  • Located on CP010*

B ESF XFMRs
Located on CP003
B Class 1E buses receive power from standby XFMR which doesn’t have load changer

As Switchyard voltage lowers, load changer will adjust XFMR tap to raise bus voltage back up.

Will recover bus voltage to >3920 Volts within 35 seconds from a minimum switchyard voltage of 327.8 kV

120
Q
  • LOT 201.09 RHR*
    • *

When is RHR placed in service?

A

≤ 350 ˚F

  • *≤ 332 psig**
  • Interlock to open MOV-060/MOV-061*

No auto close features for MOV-060/MOV-061.

121
Q
  • LOT 201.19 DRPI*
    • *

What powers DRPI?

A
  • Data Cabinets:*
  • *DP003**
  • Control Unit:*
  • *DP003 / DP004**
122
Q
  • LOT 201.16 Excore NIs*
    • *

How would power behave if the Intermediate range was undercompensated or overcompensated?

A
  • Undercompensated:*
  • *Higher than actual reading**
  • Overcompensated:*
  • *Lower than actual reading**
  • If detectors are undercompensated, source range may not energize.
  • Slightly undercompensated is preferred.
  • Note:*
  • If compensated correctly, source range will energize ≈ 15 mins after Rx shutdown.*
123
Q
  • LOT 201.06 CVCS*
    • *

What will automatically close the VCT outlet isolation valves (MOV-112B/MOV-113A)?

A
  • MOV-112B AND MOV-113A*
  • *SI**
  • Opens MOV-112C AND MOV-113B*
  • MOV-112B*
  • *VCT Level - Low 2 (3%) [LT-112]**
  • Opens MOV-112C*
  • MOV-113A*
  • *VCT Level - Low 2 (3%) [LT-113]**
  • Opens MOV-113B*

To ensure CCPs have suction water at all times, RWST supply valves (MOV-112C/MOV-113B) must be full open to close respective VCT Outlet valve (MOV-112B/MOV-113A).

  • Note:*
  • Holding the manual switches for the valves (112B/C and 113A/B) will override any auto functions and the valves will position as selected.
  • Located on CP004.
124
Q
  • LOT 201.11 Containment Spray*
    • *

What will auto start/trip the Containment Spray pumps?

A
  • Auto Start:*
  • *SI** WITH Containment Pressure - High 3 (9.5 psig) [2/4]
  • *SI** WITH Manual [2/2]
  • CP002/CP005*
  • Trip:*
  • *Overcurrent**

CS Spray Actuation: Opens discharge valve

Pump Start: Starts ECCS cubicle vent fan

Note:
Cubicle fan will also start on room high temperature. (96 ˚F)

125
Q
  • LOT 202.28 AFW*
    • *

Where are MOV-0514 and MOV-0143 physically located?

  • MOV-0514: Trip / Throttle Valve
  • MOV-0143: MS Supply
A
  • MOV-0514:*
  • *Terry Turbine Cubicle (IVC 10’)**
  • MOV-0143:*
  • *By SG PORVs (IVC 58’)**

Must leave MOV-0143 open (≥ 2 hrs) or water collects in pipe and will result in overspeed of terry turbine.

126
Q
  • LOT 201.05 RCPs*
    • *

What is the pressure, flowrate, and flowpath of the #1 Seal?

A
  • Pressure:*
  • *2250 psig → 30 psig**
  • Min D/P: 220 psid*
  • Flowrate:*
  • *8 gpm → 3 gpm**
  • Suction:*
  • *CVCS**
  • Discharge:*
  • *VCT ****
  • CCP Suction*
  • *Seal #2**

Inlet temperature ≈ 110 ˚F (Do not exceed 230 ˚F)

≈ 5 gpm goes to pump radial bearing and thermal barrier HX

Note:
On ΦA CI, Seal return to VCT isolates and relief will lift (150 psig) to send water to PRT.

127
Q
  • LOT 201.10 ECCS*
    • *

What valves in the ECCS have a power lockout feature?

A
  • *HHSI/LHSI Hot leg injection valves (MOV-008/MOV-019)**
  • 100% Power: Closed w/ power locked out*
  • CP-001*
  • *Accumulator outlet valves (MOV-039)**
  • 100% Power: Open w/ power locked out*
  • CP-001 / ASP*

No accumulator pressure / level indicators exist on ASP!!

  • Note:*
  • 2 transfer switches for accumulator outlet valves. 1 transfers control and VPI and the other transfers power lockout feature.*
128
Q
  • LOT 201.29 Fire Protection*
    • *

Which fire hydrants are safety related?

A
  • ECW Intake Structure:*
  • *Fire Hydrant #13**
  • Restore OR Route hose within 1 hr*
  • AFWST:*
  • *Fire Hydrant #7 (Unit 1)**
  • Restore OR Route hose within 1 hr*
  • *Fire Hydrant #20 (Unit 2)**
  • Restore OR Route hose within 1 hr*
  • Fire Pump Hose House:*
  • *Fire Hydrant #10**
  • Restore OR Route hose within 1 hr*
129
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

At what pressure will the PORV (PCV-655A) lift when COMS is armed?

A
  • 70 - 200 ˚F:*
  • *515 psig**
  • 220 - 380 ˚F:*
  • *730 psig**

Uses Auct Low WR TH / PT-403

  • Note:*
  • Normal PORV setpoint is ≈ 2335 psig. (Master pressure controller 87.5%)*
130
Q
  • LOT 201.18 Rod Control*
    • *

What causes a rod control Power Cabinet Urgent failure?

A
  • *Logic Error**
  • 0 Current sent to stationary and movable grippers at same time*
  • *Regulation Error**
  • Current doesn’t match order or Full current for too long*
  • *Phase Failure**
  • Excessive voltage ripple*
  • *Multiplex Error**
  • Wrong rod getting current*
  • *Rod Holdout switches out of position**
  • *Loose Circuit Card**
  • Stops Auto/Manual rod motion
  • Individual Bank rod motion will still work
  • Sends reduced current signal to affected group movable/stationary grippers
  • Note:*
  • Non-Urgent is a loss of 1 of the 4 power supplies and will not affect system operation.*
131
Q
  • LOT 202.13 Feedwater*
    • *

What are the open permissives for the FWIVs?

A

SGNR Level > 5%

SG Pressure > 685 psig

  • FWIVs fail closed on loss of hydraulics/power. (Will not close on loss of N2 pressure)
    • Hydraulic open / N2 closed
  • FW Isolation Energizes Train A/B solenoids, which secure the hydraulic pumps and dump hydraulic fluid (Manual switches [2 / SG] located on CP006)
  • Open permissives being met allows de-energizing Train A/B solenoids.

Note:
Same concept for FWIBs and Preheater Bypass Valves (PBVs) except solenoids de-energize to dump hydraulics and energize to allow opening.

132
Q
  • LOT 201.13 ECW*
    • *

Describe what happens to the ECW blowdown valves when a SI occurs?

A
  • *Blowdown valves shut**
  • Once SI clears, must take valves to shut then back to auto on CP002*

CP002 switch in AUTO:

  • ECW Train 2A: Valve opens
  • ALL other ECW Trains: Cycles Open/Shut with ECW pump starting/securing

Valve physically located on MAB 10’ at ECW Sump. (No local switch)

Note:
By procedure, every blowdown valve with exception of train 2A is maintained in the CLOSE position on CP002

133
Q
  • LOT 202.10 Condensate*
    • *

What will auto close the condensate header min flow valve (FV-7022)?

A

CD Header Pressure < 300 psig

Ensures 5600 gpm flow through GSS Condenser.

Note:
Indicated CD Flow on CP008

134
Q
  • LOT 201.39 ESF DGs*
    • *

What will trip the ESF DGs while operating in Emergency Mode?

A
  • *Engine Overspeed**
  • 660 RPM (110%)*

Generator Differential

  • *Turbo / Engine Lube Oil - Low [1/2 on 2/2]**
  • Normal Mode [1/2 on 1/2]*
  • *Emergency Stop Pushbutton [2/2]**
  • ZLP-102*
  • *Emergency Stop Plunger pulled out**
  • CP003*
135
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

While operating in MODE 1, what is your PZR Pressure DNB limit?

A

2200 psig

LCO 3.2.5 DNB Parameters

Applicable: MODE 1

136
Q
  • LOT 202.28 AFW*
    • *

What is the minimum speed of the terry turbine?

A
  • *1900 RPM**
  • 45 sec after start*

Must trip terry turbine if < 1900 RPM to prevent damage

137
Q
  • LOT 201.18 Rod Control*
    • *

When performing a Rx startup, how many steps until bank overlaps begin?

A

137 steps

  • When Control Bank A at 137 steps, Control Bank B will begin to lift.
  • Process repeated for Control Bank C and Control Bank D.
138
Q
  • LOT 202.14 SG Feedwater Pumps*
    • *

What will trip the SGFPTs?

A
  • *Bearing Oil Pressure - Low (10 psig)**
  • Emergency Oil Pump auto starts at 12 psig*

Lube Oil pressure → Interface valve - Low (35 psig)

Thrust Bearing Wear (± 20 mils) [2/2]

High / Low Presure Stop valves Closed

SI

P-14

  • *Mechanical Overspeed (5940 RPM) [110%]**
  • +109 RPM / -50 RPM*

NPSH - Low (115 psid [3 Sec TC]) [2/2]

Vacuum - Low (14” Hg OR 3 psig)
> 20” Condenser Vacuum (14” Hg)
< 20” Condenser Vacuum (3 psig)

  • *Manual (Electrical/Mechanical Overspeed)**
  • Local (Both) / CP006 (Electrical ONLY)*
  • *Any trip from Woodward 509**
  • Electrical Overspeed (5730 RPM) [106%]*

Note:
Woodward 509 Computer/Printer located on TGB 55’

139
Q
  • LOT 201.39 ESF DGs*
    • *

What is the minimum level required in each ESF DG fuel oil storage tank?

A

60,500 gallons
LCO 3.8.1.1 AC Sources - Operating
LCO 3.8.1.2 AC Sources - S/D
LCO 3.8.1.3 AC Sources - S/D

Capacity: 70,000 gallons

Will generate a TROUBLE Alarm (Appeared on NRC Exam)

  • Note:*
  • Will last for 7 days (≥ 60,500 gallons)*
140
Q
  • LOT 201.21 Containment Isolation*
    • *

What causes a containment ventilation isolation signal?

A
  • No Permissives:*
  • *SI**
  • *Radiation - High (RT8012/RT8013) [1/2]**
  • Manual:*
  • *Containment Phase A [1/2]**
  • (CP002/CP005)*
  • *Containment Phase B [2/2 on 1/2]**
  • (CP002/CP005)*

Reset located on CP022.

  • Note:*
  • Isolates Containment Normal and Supplemental Purge Systems and Containment Airborne Activity Monitor (RT-8011)*
141
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

What are the important PZR Master pressure controller setpoints?

A
  • PCV-655A:*
  • *87.5%: Opens (2335)**
  • *75%: Closes (2315)**
  • Spray Valves:*
  • *72%: Full Open (2310)**
  • *40.5%: Start to Open (2260)**
  • Control Heaters:*
  • *34.5%: Zero Power (2250)**
  • 22%: NOP (2235)*
  • *15.5%: Full Power (2220)**
  • B/U Heaters:*
  • *14.5%: Turn Off (2218)**
  • *9.5%: Turn On (2210)**
142
Q
  • LOT 203.14 GWPS*
    • *

What is the max temperature allowed for a GWPS charcoal bed?

A

85 ˚F

Requires one MAB supply and exhaust fan operating

143
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

At what pressure will the PORV (PCV-656A) lift when COMS is armed?

A
  • 70 - 200 ˚F:*
  • *475 psig**
  • 220 - 380 ˚F:*
  • *660 psig**

Uses Auct Low WR TC / PT-404

  • Note:*
  • Normal PORV setpoint is 2335 psig. (B/U pressure channel)*
144
Q
  • LOT 201.16 Excore NIs*
    • *

What will cause the following alarms?

  • PR Upper detector deviation
  • PR Lower detector deviation
  • PR Channel deviation
A
  • PR Upper Detector Deviation:*
  • *Highest PR Channel Upper Detector Current > 2% above Average detector current [60 sec TC]**

Upper detector current ≤ 50% of full power current

  • PR Lower Detector Deviation:*
  • *Highest PR Channel Lower Detector Current > 2% above Average detector current [60 sec TC]**

Lower detector current ≤ 50% of full power current

  • PR Channel Deviation:*
  • *Highest to lowest PR channels deviate > 4% [5 sec TC]**
145
Q
  • LOT 201.39 ESF DGs*
    • *

What will auto start the standby jacket water pump?

A
  • *≥ 540 RPM AND < 6 psig header pressure**
  • Blocked for 20 sec on S/U*

Once started must manually secure pump

Powered: Class 1E 480V MCC

  • Same as standby LO pump
146
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

What is the PZR Program Level for 0% RTP and 100% RTP?

A
  • 0% RTP (567 ˚F):*
  • *25%**
  • 100% RTP (593 ˚F):*
  • *57%**

At actual 100% RTP (592 ˚F) PZR Level will be 55.7%.

147
Q
  • LOT 202.02 Main Steam*
    • *

A loss of power to what components will cause the SG PORVs to close?

A

Hydraulic Pump:
ESF MCCs
Train A: SG “A” and SG “D” / Train B: SG “B” / Train C: SG “C”
Can be bypassed using station blackout switches
Once bypassed, can operate PORVs with accumulator pressure (1.5 strokes)

  • Servo Motors:*
  • *PORV “A”: DP1201**

PORV “B”: DP1203

PORV “C”: DP1204

PORV “D”: DP1202

148
Q
  • LOT 201.41 ESF Load Sequencer*
    • *

What is the MODE I sequence of starting loads?

A
  • 6 Sec / 10 Sec:*
  • *HHSI / LHSI**
  • 15 Sec:*
  • *Containment Spray** (1st Try)
  • *RCFC (11/12)**
  • 20 Sec / 25 Sec:*
  • *CCW / ECW**
  • 30 Sec:*
  • *AFW**
  • 35 Sec:*
  • *CR / EAB HVAC (Emergency MODE)**
  • *Essential Chilled Water Pump**
  • *Standby Essential Chiller**
  • 40 Sec:*
  • *Containment Spray** (2nd Try / Locks in)
  • 240 Sec:*
  • *Running Essential Chiller(s)**
  • 280 Sec:*
  • *Sequence Complete**
149
Q
  • LOT 201.20 SSPS*
    • *

Which actuation train’s urgent alarm will result in a logic train’s urgent alarm?

A

Actuation Train “A” → Logic Train “R”

Actuation Train “B” → Logic Train “S”

Actuation Train “C” does NOT result in a logic train’s urgent alarm.

Actuation Train “C” trouble alarm does result in a Logic Train “R” AND Logic Train “S” trouble alarm.

  • Note:*
  • Urgent alarms on CP026.*
150
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

When is COMS required to be armed?

A

≤ 350 ˚F

  • PCV-655A (Auct Low WR TH / PT-403)
  • PCV-656A (Auct Low WR TC / PT-404)

COMS controller completely independent of master pressure controller.

  • Note:*
  • Manually armed on CP004*
151
Q
  • LOT 201.16 Excore NIs*
    • *

Where are the NIs physically located on the core?

A
  • *PR (NI-44) [45˚]**
  • 2 Detectors (Top and Bottom)*
  • *Extended Range [90˚]**
  • Center of core*
  • *PR (NI-41) [135˚]**
  • 2 Detectors (Top and Bottom)*
  • *SR (NI-31) / IR (NI-35) [180˚]**
  • SR on bottom / IR at midplane*
  • *PR (NI-43) [225˚]**
  • 2 Detectors (Top and Bottom)*
  • *Extended Range [270˚]**
  • Center of core*
  • *PR (NI-42) [315˚]**
  • 2 Detectors (Top and Bottom)*
  • *SR (NI-32) / IR (NI-36) [0˚]**
  • SR on bottom / IR at midplane*

Start at 45˚ and say PEPSI x2.

152
Q
  • LOT 201.13 ECW*
    • *

What is the minimum level and max temperature of the ECW pond as required by LCO 3.7.5 Ultimate Heat Sink?

A
  • Level:*
  • *≥ 25.5 ft**
  • Max Level 26 ft (FSAR)*
  • Temperature:*
  • *≤ 99 ˚F**

Pond sized to have a 30 day cooling water supply to safely shutdown and cooldown both Units while maintaining a heat sink for heat removal

  • Note:*
  • ECW Bay LVL indication and alarms located on CP002
  • ECW Bay LVL - Low 2 (14.96 ft) for LCO 3.7.5 entry.
153
Q
  • LOT 201.09 RHR*
    • *

What trips the RHR pumps?

A

SI

RHR Flow - Low (925 gpm [5 sec TC])

CP001 Indications:

  • Amps
  • Flow
154
Q
  • LOT 202.26 Service / Instrument Air*
    • *

What happens as IA pressure lowers?

A
  • 122 psig / 119 psig / 116 psig / 113 psig:*
  • *Compressors 11 - 13 / 14 Start**
  • Lead / Standby / Lag / Air Cooled*
  • 100 psig:*
  • *Service Air Isolation Closes**
  • Reset on ZLP-134 (TGB 29’ by compressors 11/12/13)*
  • 90 psig:*
  • *IA to yard Closes**
  • 88 psig:*
  • *Low Power FRVs drift closed**
  • 80 psig:*
  • *IA Dryer Bypass Opens**
  • Reset by valve*
  • *Letdown Header Orifice header isolation valves drift Closed**
  • 67 psig:*
  • *MFRVs drift Closed**

60 psig:
Manually Trip the Rx
MSIVs drift Closed

Service / IA Air pressure indicated on CP008.

155
Q
  • LOT 201.43,44,45 Refueling Operations*
    • *

How many SR detectors must be operable while in MODE 6?

A

2 SR Detectors

Both with visual indication

One with audio for MCR and Containment

1 Extended Range may be substituted for 1 SR if remaining SR provides audible count rate.

156
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

What is the maximum amount of water that can be in the PZR in MODES 1-3?

A
  • *≤ 1816 ft3**
  • ≈ 100% PZR LVL*

LCO 3.4.3 PZR

Applicable in MODES 1-3

  • Note:*
  • Total PZR volume is 2100 ft3*
157
Q
  • LOT 202.28 AFW*
    • *

What is the minimum volume in the AFWST as required by LCO 3.7.1.3 AFWST?

A

485,000 gals

LCO 3.7.1.3 AFWST

Applicability: MODES 1 - 3

158
Q
  • LOT 201.09 RHR*
    • *

What happens in the RHR system during a SI?

A

RHR HX Bypass Closes

RHR HX TCV Valve Full Open

RHR Pumps Trip

  • *CCW from RHR HX opens**
  • CCW pump mini-flow concerns*
159
Q
  • LOT 201.30 Offsite Electrical*
    • *

Procedurally, what is the current rating of the standby transformer windings?

A

1621 Amps / Winding

Equivalent to 2 Aux Busses and all 6 ESF busses fully loaded.

160
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

What is the effect of indicated PZR level for the following conditions?

  • Reference Leg Break
  • Diaphragm Failure
  • Reference Leg Heating
A
  • Reference Leg Break:*
  • *Less Mass → D/P ↓ → Lind↑**
  • Diaphragm Failure:*
  • *D/P ↓ → Lind↑**
  • Reference Leg Heating:*
  • *Less Mass → D/P ↓ → Lind↑**
  • w/o compensation*
161
Q
  • LOT 201.29 Fire Protection*
    • *

What is required to be FUNCTIONAL in the Fire Protection System?

A

2 Tanks (300,000 gal each)

2 Pumps (2500 gpm each)

  • 1 Pump FUNCTIONAL (Restore in 7 days)
  • Total Volume ≥ 300,000 gal but < 600,000 gals (Restore in 7 days)
  • Pumps AND Volume NOT FUNCTIONAL (Restore in 24 hours)
  • Underground Piping NOT FUNCTIONAL (Restore in 24 hours)

Note:
Only Safety Related portion of the system is the CIVs

162
Q
  • LOT 202.08 Extraction Steam / MSRs*
    • *

Where does the extraction steam go on the LP Turbine?

A
  • Turbine End:*
  • *4th Stage: FWH 14A/B**
  • *6th Stage: FWH 15A/B/C**
  • *8th Stage: FWH 16A/B/C**
  • Generator End:*
  • *2nd Stage: FWH 13A/B**
  • *6th Stage: FWH 15A/B/C**

Blowdown flash tank steam goes to FWH 13A/B.

163
Q
  • LOT 201.41 ESF Load Sequencer*
    • *

Plant Conditions:

  • ESF DG in parallel with offsite
  • SI occurs

What does the ESF DG load sequencer do?

A

Output bkr will open and then MODE I will occur

If output bkr does not trip within 1 sec, incoming breaker will trip, sequencer will strip bus w/ exception of LC breakers and MODE III sequence will run.

164
Q
  • LOT 202.09 Steam Dumps*
    • *

What is the steam dump capacity?

A

40%
12 steam dumps (3.33%/Steam Dump)

Controls pressure/temperature following a 50% load reject (10% is covered by rods)

165
Q
  • LOT 201.27 Containment Combustible Gas*
    • *

What are the sources of H2 during a LOCA?

A
  • Major Source:*
  • *Radiolytic decomposition of water ****

Other Sources:
Zirc water reaction **
H2 from the RCS
Max is 1190 scf
Corrosion of metals and paint in containment
Zinc-based paints & galvanized steel
Aluminum
Less of a source than zinc

  • Note:*
  • Radiolytic decomposition of water and Zirc water reaction are variable and will increase with fuel damage*
166
Q
  • LOT 201.41 ESF Load Sequencer*
    • *

What permissives must be met for the ESF DG output breaker to close during a MODE II or MODE III sequence?

A

95% of rated voltage and frequency achieved

6 sec TD from LOOP signal received

  • *Breakers open for stripped loads**
  • If breaker failed to open, the sequencer locks up*
167
Q
  • LOT 202.14 SG Feedwater Pumps*
    • *

What will auto start the SGFPT’s EOPs?

A

Bearing Oil Pressure < 12 psig

Does not supply interface valve so SGFPT will trip.

1 EOP/SGFPT

Note:
Powered from 250VDC Swbd 1A

168
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

What Tavg is used to calculate PZR program level?

A

Auctioneered High Tavg

Compares selected controlling channel level (LT-465 or LT-467) to program level to determine demand to FCV-0205.

169
Q
  • LOT 201.02 RCS*
    • *

What would Loop 1 RCS flow indicate if the high pressure tap on loop 1 ruptures?

A

All loop flows in that loop fail to zero

Loop flow consists of 1 High Pressure (Outside of elbow) and 3 Low Pressure (Inside of elbow).

↓∆P = ↓HP - LP → Flow ↓

Note:
Rupture of a Low pressure tap would result in Flow failing high on 1 of 3 flow instruments.

170
Q
  • LOT 201.02 RCS*
    • *

What is Keff, RTP, and Tavg when the plant is in MODE 2?

A

Startup:

  • Keff:*
  • *≥ 0.99**
  • RTP:*
  • *≤ 5%**
  • Tavg:*
  • *≥ 350 ˚F**
171
Q
  • LOT 202.09 Steam Dumps*
    • *

What causes the #3 solenoid to energize?

A
  • Tavg Mode:*
  • *C-9**
  • Condenser Vacuum > 22” Hg AND CW breaker Shut [1/4]*

AND

  • *C-7 OR C-8**
  • C-7: 10% load reduction OR 5%/min*
  • C-8: EH pressure 1245.8 psig [2/3] OR TVs closed [2/4]*
  • Pressure Mode:*
  • *C-9**
  • Condenser Vacuum > 22” Hg AND CW breaker Shut [1/4]*

AND
Steam Header Pressure > Setpoint

If C-7 energizes #3 solenoid, must reset on CP007 to de-energize #3 solenoid.

172
Q
  • LOT 201.10 ECCS*
    • *

What are the four phases of a DBA LOCA?

A
  • *Blowdown**
  • Begins with LOCA and ends with RCS pressure = CTMT pressure*
  • *Refill**
  • Water at bottom of the reactor vessel and reaches the bottom of the fuel rods via addition of ECCS (Accumulators and SI pumps).*
  • *Reflood**
  • Rx vessel filled with water*
  • Core temperature rise has terminated*
  • Core temperatures have been reduced to their long term steady state level.*
  • *Long Term Recirculation**
  • Cold Leg Recirc (1st Phase)*
  • Hot Leg Recirc (2nd Phase)*
  • Hot Leg Recirc starts 5.5 hrs (Operator Action) after start of LOCA and cools upper head and prevents boron precipitation.*
173
Q
  • LOT 201.01 RCB*
    • *

What is the design pressure of containment?

A
  • Internal:*
  • *56.5 psig**
  • Between -0.1 and +0.3 psig*
  • CNMT PRESS HI / LOW (CP002)*
  • (LCO 3.6.1.4 Containment Internal Pressure)*
  • External:*
  • *3.5 psig**

Max expected for DBA is 41.2 psig

CNMT PRESS HI/LOW on CP002 will put you in LCO 3.6.1.4 Containment Internal Pressure.

  • Note:*
  • Design temperature is 286 ˚F*
174
Q
  • LOT 202.13 Feedwater*
    • *

What Deaerator Storage Tank level setpoints will cause automatic / operator actions?

A
  • High 2 (89%/90%): [2/2]*
  • *DA Inlet MOVs Close (CD-574/CD-575)**

Extraction Steam Block / Non-Return valves Close

FW HTR 11A/B Drain to DA Valves Close

  • 86%: [2/2]*
  • *High Level Dump Valves Open (FW-7175/7175A)**
  • 40%:*
  • *Start Standby Condensate Pump (Operator Action)**
  • Does not require venting*
  • 30%:*
  • *POP09/POP04 requires Rx Trip**
  • 6%:*
  • *FWBPs Trip**

Normal Level is 70%

Note:
Meter on CP008 and ICS will stop indicating at 30%

175
Q
  • LOT 201.37 Class 1E 125VDC*
    • *

What are some loads powered from the Class 1E 125VDC system?

A

Train A/B/C:

(A / B ONLY)
Rx Trip Breaker Control Power
PZR PORVs

ESF DGs:
Field Flash
Sequencers (A/B/C)
PL-139A/B/C (DG Control Panels)

ESF:
4.16 kV / 480V ESF Control Power
PL-39A/B/C (EAB)
Class 1E 120V Inverters

Train D:

  • *Terry Turbine MOVs**
  • *PL-40A (EAB)**
  • *Class 1E 120V Inverter (1202)**
176
Q
  • LOT 202.44 QDPS*
    • *

What will happen to the Rx Head Vents if power is lost to APC-2?

A

Will close if opened

Controlled from upper section of APC-2.

177
Q
  • LOT 201.27 Containment Combustible Gas*
    • *

What are the sample points for the H2 monitors?

A

Top of Containment Dome

Above S/Gs (S/G C/D)

Inside S/G Compartment (S/G C/D)

Inside Primary Shield (S/G A/B)

Controlled from CP002

  • Note:*
  • H2 monitor “B” penetrations used by PASS*
178
Q
  • LOT 202.01 S/G*
    • *

What is the purpose of the outlet flow restrictor?

A
  • *Restricts blowdown of S/G during SLB****
  • Safety Function*
  • *Develops steam flow signal**
  • Normal Operations*
  • Limit primary cooldown rate
  • Limit stress on the S/G internals
179
Q
  • LOT 202.28 AFW*
    • *

What are the design bases for the AFW system?

A
  • Automatic Operation:*
  • *Starts within 1 min and can run unattended for 10 mins**
  • Flowrate:*
  • *Supplies 500 gpm to 1 S/G for FW Rupture / SLB**

Supplies 500 gpm to 2 S/Gs for loss of FW / LOOP

  • Cooldown:***
  • *50 ˚F/hr with 1 RCP**

25 ˚F/hr on natural circ

  • AFWST:***
  • *Maintain plant in hot standby for 4 hrs and then go to RHR conditions**
  • Containment Integrity:*
  • *Prevents reaching containment design pressure (56.5 psig)**
  • Note:*
  • Showed up on instructor’s NRC exam*
180
Q
  • LOT 202.02 Main Steam*
    • *

Where does AFW #14 tap off the Main Steam system?

A

SG “D” PORV line

181
Q
  • LOT 201.06 CVCS*
    • *

What will close the letdown orifice header isolation valve (FV-011)?

A
  • *CI ΦA**
  • *PZR Lvl - Low (17%)**
  • LT-0465 OR LT-0468*
  • *Loss of Air**
  • *Loss of MCC E1C1**
  • PZR Low Lvl on LT-0465 will close LCV-465 after 10 sec TD.
  • PZR Low Lvl on LT-0468 will close LCV-468 after 10 sec TD.
  • Note:*
  • To reopen FV-011:*
  • PZR LVL > 17% on LT-0465 AND LT-0468
  • LCV-465 AND LCV-468 open
  • CI ΦA signal not present
182
Q
  • LOT 201.36 Class 1E 4.16kV/480V*
    • *

What powers the RHR pumps, SFPC pumps, and the B/U PZR heaters?

A
  • RHR:*
  • *A: E1A2**
  • *B: E1B2**
  • *C: E1C1**
  • SFPC:*
  • *A: E1B1**
  • *B: E1C1**
  • PZR B/U Heaters:*
  • *A: E1A1**
  • *B: E1C1**
183
Q
  • LOT 202.01 S/G*
    • *

What is the minimum Rx power that the SGs can be fed through the main feed nozzle?

A

4%

Prevents thermal stratification at low feedwater flows

Note:
Cannot use main feed when RCS temperature < 340 ˚F.

184
Q
  • LOT 201.02 RCS*
    • *

How many NR hot leg and NR cold leg temperature instruments are there in each loop of the RCS?

A
  • *3 Hot Legs**
  • Located 120˚ apart for stratification purposes*
  • *1 Cold Leg**
  • Located downstream of RCPs (Stratification not a concern)*

Feed into Tavg and ∆T.

185
Q
  • LOT 201.20 SSPS*
    • *

What are the bases for the different regions of the Reactor Core Safety Limits - 4 Loops in Operation COLR graph (Tavg vs RTP)?

A

Flat Region (Green)

Ensures that no bulk boiling will occur at the core exit so that the OPΔT and OTΔT trips remain functional

Steep Region (Pink)

Assures that DNB does not occur (DNBR is maintained >1.52)

186
Q
  • LOT 202.13 Feedwater*
    • *

What will auto start/trip a FWBP?

A
  • Auto Start:*
  • *Trip of running pump**

Start Permissives:
Lube Oil Pressure > 8 psig
DAST Level > 6%
Oil Pressure ≥ 11 psig
Local switch not in stop

Trip:
Lube Oil Pressure < 8 psig
DAST Level < 6%
UV on switchgear
Overcurrent

Breaker Closing:

  • Opens Discharge MOV (Locks in open signal for 3 min)
  • Recirc valve will modulate (8000 gpm)

Start permissives being met will be indicated by blue light on 13.8 kV switchgear

  • Does not indicate whether MCR switch is in Stop/PTL
    • *

Note:
By procedure a standby FWBP will have it’s discharge MOV already open

187
Q
  • LOT 202.14 SG Feedwater Pumps*
    • *

What provides steam to the SGFPTs?

A
  • 2% - 40%:*
  • *MS Equalizing Header**
  • 40% - 100%:*
  • *Reheat Steam from ​MSR 11**
188
Q
  • LOT 201.29 Fire Protection*
    • *

What auto starts the fire protection pumps?

A

Pump 1:
Header Pressure 130 psig [5 sec TD]
Loss of Power to Panel

Pump 2:
Header Pressure 120 psig [10 sec TD]
Loss of Power to Panel

Pump 3:
Header Pressure 110 psig [15 sec TD]
Loss of Power to Panel

Jockey pump maintains system pressure > 130 psig (35 gpm)

Note:
Jockey pump operated locally in “Hand” position. Auto position non-functional.

189
Q
  • LOT 201.06 CVCS*
    • *

What are the flowrates of the CVCS letdown orifices?

A
  • *120 gpm - 150 gpm**
  • Normally in service*
  • *85 gpm - 100 gpm**
  • *25 gpm - 30 gpm**

Flowrate based on 2235 psig in RCS.

  • Note:*
  • FV-012 (120 gpm - 150 gpm) and FV-013 (85 gpm - 100 gpm) are air operated and fail close on loss of air.
  • FV-014 (25 gpm - 30 gpm) is a MOV.
190
Q
  • LOT 201.29 Fire Protection*
    • *

What rooms are protected by Halon?

A

Computer Room

Computer Battery Room

Relay Room

TSC Computer Room

191
Q
  • LOT 201.01 RCB*
    • *

What must IA header pressure to the airlock seals be in order to make the personnel airlock OPERABLE?

A

≥ 90 psig

Cannot decay more than 0.5 psig in 8hrs.

Cannot decay more than 1.5 psig in 24 hrs.

  • Note:*
  • LCO 3.6.1.3 Containment Airlocks is APPLICABLE in MODES 1 - 4.*
192
Q
  • LOT 201.02 RCS*
    • *

What are the piping penetrations off the hot legs?

A
  • Loop 1:*
  • *RHR “A” Suction**
  • *SI “A” Recirc**
  • *Sampling**
  • Loop 2:*
  • *RHR “B” Suction**
  • *SI “B” Recirc**
  • Loop 3:*
  • *RHR “C” Suction**
  • *SI “C” Recirc**
  • *Sampling**
  • Loop 4:*
  • *PZR Surge Line**
193
Q
  • LOT 201.16 Excore NIs*
    • *

What areas of the gas filled detector curve does each NI operate in?

A
  • Source Range:*
  • *Proportional Region**
  • Intermediate Range:*
  • *Recombination Region**
  • Inner Can*
  • *Ionization Region**
  • Outer Can*
  • Power Range:*
  • *Ionization Region**
194
Q
  • LOT 202.44 QDPS*
    • *

How does the AFW control valves respond during a AFW actuation?

A
  • APC-2:*
  • *Flow Controlled between 550 gpm - 640 gpm**
  • Does not look at SGWL just AFW flow*
  • Manual:*
  • *Operator can manually jog valve as long as APC-2 not actively adjusting flow.**

APC-2 will return flow to band once sw. released.

If switched held by operator until full open reached, APC-2 will retake control and return flow to band.

  • Note:*
  • Resetting AFW isolation allows operator to go < 550 gpm but APC-2 will return flow to ≤ 605 gpm (640 gpm - 35 gpm B/D) once operator releases sw. or full open reached.*
195
Q
  • LOT 202.44 QDPS*
    • *

What powers the various components in QDPS?

A
  • APC-1s and APC-2s:*
  • *DP1201 - DP1204**
  • DPUs:*
  • *DP001/DP002**
  • Plasma Displays:*
  • *DP001/DP002**
  • Demultipliers:*
  • *DP005**
  • CP002/CP018/ASP*
  • RPU-N:*
  • *DP006**
196
Q
  • LOT 202.22 Circulating Water*
    • *

What is the CW pump start sequence?

A
  • First Pump:*
  • *10 sec after start, Discharge MOV opens to 40%**
  • Second Pump:*
  • *10 sec after start, 2nd Pump’s Discharge MOV fully opens**

Once 2nd Pump’s Discharge MOV is 35% open, 1st Pump’s Discharge MOV fully opens

  • Third / Fourth Pump:*
  • *10 sec after start, Discharge MOVs fully open**

Pump trips:

  • Discharge MOV NOT moving after 24 sec
  • Discharge MOV NOT 35% open in 32 sec
197
Q
  • LOT 201.41 ESF Load Sequencer*
    • *

What is the MODE II sequence of starting loads?

A
  • 1 Sec:*
  • *480 V Buses**
  • 15 Sec:*
  • *RCFC (11/12)**
  • 20 Sec / 25 Sec:*
  • *CCW / ECW**
  • 30 Sec:*
  • *AFW**
  • 35 Sec:*
  • *CR / EAB HVAC (Emergency MODE)**
  • *Essential Chilled Water Pump**
  • *Standby Essential Chiller**
  • 240 Sec:*
  • *Running Essential Chiller(s)**
  • 280 Sec:*
  • *Sequence Complete**
  • Note:*
  • Can manually initiate with unlabeled shielded red pushbutton on CP003.*
198
Q
  • LOT 201.18 Rod Control*
    • *

How is the Terror signal generated in the Rx Control Unit?

A
  • Terror = (Tref - Tavg) + (Turb Load - NI power)*
  • *Tref → Turbine Impulse Pressure (PT-505)**
  • *Tavg → Auctioneered High Tavg (T-412A/422A/432A/442A)**
  • *Turb Load → Turbine Impulse Pressure (PT-505)**
  • *NI Power → Auctioneered High PR NIs (NI-41/42/43/44)**
  • Turbine Load - NI Power Portion:*
  • *Used for fast response during transients / load stability**
  • *Passes through Rate comparator**
  • Rate of change produces error output*
  • Steady state results in no output*

Note:
Terror meter on CP005

199
Q
  • LOT 202.13 Feedwater*
    • *

What will auto start the SUFW pump?

A
  • Auto Start:*
  • *Trip of SGFPT**
  • Start Permissives:*
  • *SUFW Lube Oil Pressure > 5 psig**

Suction Pressure > 180 psig

Suction Valve (FW-0517) Open

NPSH Pressure > 80 psid

  • *No FW Isolation Signal**
  • P-14 or SI ONLY*

On Pump Start:

  • Releases discharge non-return valve (DOES NOT OPEN DISCHARGE MOV)
  • Recirc valve starts to modulate (3300 gpm - 7000 gpm)
  • Secures aux seal cooling pumps

Note:
By procedure, a SUFW will have it’s discharge MOV already open

200
Q
  • LOT 201.06 CVCS*
    • *

What will close the letdown CIVs (CV-023 / CV-024)?

A
  • *CI ΦA**
  • *High Energy Line Break**
  • 112.7 ˚F [1/8] in MAB room shuts associated valve*
201
Q
  • LOT 202.41 Radiation Monitoring*
    • *

Which process and effluent monitors have control functions?

A
  • Processing:*
  • *LWPS (RT-8038)**
  • Recircs back to WMTs (FV-4077)*
  • *BRS (RT-8037)**
  • Sends to feed demins*
  • *GWPS (RT-8032)**
  • Isolates Discharge (Closes Discharge, inlet, BRS Vent, and secures bellows compressor)*
  • Secondary Plant:*
  • *TGB Sump (RT-8041)**
  • Stops Sump Pump*
  • *CPS (RT-8042)**
  • Isolates Neut Basin (Closes discharge Valve)*
  • *SGBD (RT-8043)**
  • Isolates Neut Basin (Closes discharge Valve)*
  • HVAC:*
  • *Containment Purge (RT-8012/RT-8013)**
  • CVI [1/2]*
  • *CR/EAB HVAC (RT-8033/RT-8034)**
  • Emergency Mode*
  • *FHB HVAC (RT-8035/RT-8036)**
  • Filtered Exhaust*
202
Q
  • LOT 201.20 SSPS*
    • *

What pressure transmitter does tech specs allow you to bypass rather than place in trip?

A
  • *Containment Pressure (PT-937)**
  • Used for Containment Spray*
  • Containment Pressure - High 3 (9.5#) [2/4]*
203
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

What drains into the suction of the RCDT pump?

A
  • *PRT**
  • *Cavity Drain**
  • *SI Accumulator Drains**
  • *RCS Loop Drains**

  • Note:*
  • RCDT Pump will auto stop on Flow - Low 2*
204
Q
  • LOT 201.14 PZR Pressure & Level*
    • *

What controls the opening of the PORVS? (PCV-655A / PCV-656A)

A
  • PCV-655A:*
  • *Master Pressure Controller**
  • 87.5% (≈ 2335 psig)*
  • PCV-656A:*
  • *Backup PZR Pressure Channel**
  • 2335 psig*
  • Note:*
  • Only odd numbered channels can be selected as the “controlling channel” to input to the master pressure controller. (455/457)
  • Only even numbered channels can be selected for backup control, and they only input to PCV-656A (456/458)
  • Switch on CP004
205
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

What is the setpoint of the PZR PORVs?

A

2335 psig

  • PCV-655A: E1A11
  • PCV-656A: E1B11
  • Block valves are Class 1E 480V.

Both PZR PORVs AND Block valves required to be OPERABLE in MODES 1-3 (LCO 3.4.4)

  • Note:*
  • Relieves to PRT*
206
Q
  • LOT 202.28 AFW*
    • *

When will the terry turbine (MOV-0514) trip on overspeed?

A
  • *114%**
  • 100% speed is 3600 RPM*

Manual linkage reset after mechanical overspeed (4100 RPM)

Note:
Trip pushbutton on CP006/ASP is an electrical overspeed.

207
Q
  • LOT 201.10 ECCS*
    • *

What is the system lineup during hot leg recirc?

A

2 ECCS trains injecting into Hot Legs

1 ECCS train injecting into Cold Leg

LHSI and HHSI mini-flow valves closed

Taking Suction from Emergency Sumps

HHSI and LHSI are operated together. Never align HHSI to Hot leg and LHSI to Cold leg or vice versa.

  • Note:*
  • Cold Leg Recirc is the exact same except all 3 ECCS trains injecting into cold legs.*
208
Q
  • LOT 201.06 CVCS*
    • *

What will automatically close MOV-033A/B/C/D and, by doing so, isolate RCP seal injection?

A
  • *CI ΦA **
  • *WITH**
  • *Charging Header Pressure - Low (≤ 560 psig)**
  • Indicated on CP004 (PT-204)*

Note:
Holding switch on CP004 in “OPEN” position will override auto closure signal and allow valve to stay open.

209
Q
  • LOT 202.10 Condensate*
    • *

What will a high level in FW Heaters 15/16 cause?

A

Closes Inlet/Outlet valve for respective string

Opens Bypass MOV

Trips associated LPHD Pump

Relays for automatic High level actuation comes from LPHD pump control power.

NO AUTO FEATURES FOR FW HTRS 13/14

Note:
Anticipated following a Rx Trip

210
Q
  • LOT 203.11 LWPS*
    • *

What system does the LWPS use to discharge water?

A

OLACW

CWS

Activity - High on RT-8038 will terminate discharge (FV-4077) and send water back to respective WMT. (Long path recirc)

211
Q
  • LOT 202.08 Extraction Steam / MSRs*
    • *

Where does the extraction steam go on the HP Turbine?

A

4th Stage Extraction: FWH 11A/11B

Exhaust: DA (FWH 12)

212
Q
  • LOT 201.39 ESF DGs*
    • *

When will the ESF DGs trip on overspeed?

A

660 RPM
110%

Shuts off fuel AND isolates intake air (S/D Butterfly Valve)

213
Q
  • LOT 202.22 Circulating Water*
    • *

How long must the circulating water pumps remain in operation after a LWPS discharge is complete?

A

1.5 Hours

214
Q
  • LOT 203.14 GWPS*
    • *

What will auto shutdown the GWPS?

A

Boron Recycle Holdup Vent Pressure - Low

Bellows Compressor Leak

Inlet Pressure - High

System Flow - High

  • *Room H2 - High (4)**
  • 87.5% of lower flammability limit*
  • *O2 - High**
  • 20% of scale (1%)*
  • *Outlet Radiation - High (RT-8032)**
  • Adjacent-to-line gamma scintillation detector*

Closes system inlet (FV-4657), outlet (FV-4671), Boron recycle tank vent (FV-4651), and secures bellows compressor.

  • Note:*
  • Two radiation detectors in system (RT-8031/8032). Only RT-8032 will shutdown system.*
215
Q
  • LOT 203.14 GWPS*
    • *

What are the influents to the GWPS?

A

Low pressure N2

PRT

RCDT

LWPS Waste Evaporator

BRS Recycle Evaporator

BRS Recycle Holdup Tanks

VCT

Rx Head Degassing Tank

216
Q
  • LOT 202.10 Condensate*
    • *

What are the start permissives and trips for the condensate pumps?

A
  • Start Permissives:*
  • *Discharge Valve Closed**
  • No Automatic Actions*

Recirc Valve Closed
Opens and begins modulating on pump start
Shuts when pump secures [5 sec TD]

Suction Valve Open

Adequate NPSH

  • Trips:*
  • *Low NPSH**
  • Low D/P*

NO AUTO STARTS

Note:
Controlled from CP008

217
Q
  • LOT 201.42 SFP Cooling*
    • *

What will auto close the RWST purification pump’s suction valves?

A

SI

Will not trip the pumps

Valves will fail close on loss of IA or DC control power.

  • Note:*
  • Controlled on CP001*
218
Q
  • LOT 202.01 S/G*
    • *

When will the SG PORVs lift?

A

1225 psig (± 7 psig)

  • Used to Cooldown plant when condenser not available
  • After a Rx trip, Tavg will stabile at 571 ˚F.
    • With the condenser available (Steam Dumps), Tavg will stabilize at 567 ˚F
  • All four PORVs together have capacity of 25% (6.25% each)

Note:
Relieves to atmosphere (Roof)

219
Q
  • LOT 201.12 CCW*
    • *

What will happen in the CCW system during a SI?

A
  • *All 3 CCW pumps start**
  • 20 Sec on ESF DG Sequencer*
  • Will start even if switches on CP001/CP002 are in off*

Isolates non-ESF loads

  • *Aligns CCW to RCFCs**
  • Secures RCB Chill Water*
  • *Opens RHR HX outlet valves**
  • CCW Min Flow requirements*
  • Note:*
  • Must re-align cooling to SFP HXs in 2.5 hrs.*
220
Q
  • LOT 201.20 SSPS*
    • *

What ESF actuations are NOT defeated when the master relay defeat switch is in the “defeat/cvi available” position?

A
  • *CVI**
  • Will be defeated in “Defeat All” Position*
  • *COMS**
  • LTOP Relief*

PZR PORVs

  • *PZR Level - Low (17%)**
  • Letdown Isolation*
  • *VCT Level - Low (3%)**
  • Swapover to RWST*
  • *Boric Acid Tank Level - Low 2 (29,584 gal)**
  • Isolates Purification*
  • *RHR Flow - Low (925 gpm [5 sec TC])**
  • Trips RHR pump*
  • *SI Auto Recirc**
  • LHSI / HHSI takes suction on containment sump vice RWST*
221
Q
  • LOT 202.22 Circulating Water*
    • *

What will energize the blue start permissive light on CP009?

A

Discharge Column filled*

  • *Seal Pressure > 30 psig**
  • < 50 psig starts standby pump*

Discharge Valve Closed

> 5 mins since last CW pump start

Can use Jet pump to draw air and moisture out of CW discharge column.

  • Uses screen wash header as prime water
222
Q
  • LOT 202.09 Steam Dumps*
    • *

How does the operator determine the correct setpoint for the Header Pressure Controller (PK-0557) on CP007?

A

Desired Pressure/Span of PI-557*10

1185 psig/1400 psig *10 = 8.46 turns

223
Q
  • LOT 202.13 Feedwater*
    • *

What is required to reset a FW isolation?

A
  • P-14:*
  • *Reset SI/P-14 (CP006) w/ P-4 False**
  • *Reset FW Cont & Bypass Valves (CP006)**
  • *FW Isolation Switches to “Open” (CP006)**
  • Allows control of PBVs, FWIVs, and FWIBs*

SI:
Reset SI (CP001)
Reset SI/P-14 (CP006) w/ P-4 False
Reset FW Cont & Bypass Valves (CP006)
FW Isolation Switches to “Open” (CP006)
Allows control of PBVs, FWIVs, and FWIBs

  • P-4 w/ Tavg Low (574 ˚F) [2/4]:*
  • *Reset Low Tavg (CP006)**
  • Resets all valves except MFRVs*
  • *FW Isolation Switches to “Open” (CP006)**
  • Allows control of PBVs, FWIVs, and FWIBs*
  • *P-4 must be False to operate MFRVs**
224
Q
  • LOT 201.09 RHR*
    • *

Where in the CVCS does RHR enter and exit?

A
  • Supply:*
  • *Downstream of Regen HX (IRC)**
  • RHR Train “A” AND Train “B”*
  • Return:*
  • *Upstream of VCT**
  • RHR Train “A” ONLY*

Low Pressure Letdown:

  • All letdown orifices open
  • RHR pump not required to be running
  • PCV-135 able to maintain ≈ 380 psig
225
Q
  • LOT 201.16 Excore NIs*
    • *

When performing a NI calorimetric, what conditions must be held stable for 5 mins?

A

RTP

Feedwater Flow

Blowdown Flow

SGWL

Tavg

226
Q
  • LOT 202.33 RCB HVAC*
    • *

When should the CRDM cooling fans be in operation?

A
  • *RCS > 150 ˚F**
  • Must be placed in operation at 350 ˚F*

2 of 3 required for operation.

Power Supply: MCC 1A5/1B5/1C5

Note:
Designed to keep CRDM insulation < 392 ˚F.

227
Q
  • LOT 201.18 Rod Control*
    • *

What does the Rod Control Startup Switch reset?

A
  • POSSUM:*
  • *P/A Converter**
  • *Bank Overlap Unit**
  • *Step Counters**
  • *Slave Cyclers**
  • *Urgent Failures**
  • *Master Cycler**

Located on CP005.

228
Q
  • LOT 201.18 Rod Control*
    • *

What is the purpose of using bank overlap?

A

Gives more uniform reactivity rate

  • Used for the control banks ONLY.
  • S/D banks not overlapped b/c they will not be used while critical.
  • Note:*
  • The bank selector switch must be in Auto or Manual to maintain bank overlaps during rod movement.*
229
Q
  • LOT 201.10 ECCS*
    • *

In order for the accumulators to be OPERABLE in MODES 1 - 3 w/ PZR pressure > 1000 psig, what must water volume and boron concentration be?

A
  • Water Volume:*
  • *8800 gal - 9100 gal**
  • Boron Concentration:*
  • *2700 ppm - 3000 ppm**

LCO 3.5.1 Accumulators

Applicable: MODES 1 - 3

230
Q
  • LOT 201.13 ECW*
    • *

What provides makeup to the ECW pond?

A
  • Normal:*
  • *Well Water**
  • Alternate:*
  • *Unit 2 ECW Sump via ECW 2A return line**
  • Unit 1 Sump is normally aligned to Unit 1 CW Return.
  • Unit 2 Sump can be aligned to Unit 1 CW Return.
  • Note:*
  • ECW Sump located on MAB 10’ in Essential Chiller Train C Room.*
231
Q
  • LOT 201.10 ECCS*
    • *

When does the accumulator relief lift?

A

700 psig

Relieves to Containment Atmosphere

  • HHSI Discharge Relief (1750 psig) → PRT
  • LHSI Discharge Relief (600 psig) → PRT
232
Q
  • LOT 202.09 Steam Dumps*
    • *

What causes the #4 solenoid to energize?

A

Turbine Trip (C-8):

  • *High 1: Tavg - Tref > 13 ˚F**
  • Trips open steam dump banks 1 and 2*
  • *High 2: Tavg - Tref > 26 ˚F**
  • Trips open steam dump banks 3 and 4*

No Deadband

Load Rejection (C-7):

  • *High 1: Tavg - Tref > 7.41 ˚F**
  • Trips open steam dump banks 1 and 2*
  • *High 2: Tavg - Tref > 11.81 ˚F**
  • Trips open steam dump banks 3 and 4*

Setpoint changes based on chart

  • *3 ˚F deadband at 592 ˚F Tavg**
  • Allows Rods a chance to fix deviation*

Active in Tavg MODE only.

  • Note:*
  • Tavg driven off Auctioneered High Tavg
  • Tref driven of PT-505
233
Q
  • LOT 202.41 Radiation Monitoring*
    • *

What is the basic operation of a PIG monitor?

A
  • *Sample flow passes across filter paper**
  • Suspends radioactive particles*

Beta Scintillation detector checks paper for airborne contamination

  • *Remaining gasses pass charcoal filter**
  • Removes Iodine and Noble Gas*

Gamma Scintillation Detector checks Iodine

Beta Scintillation Detector checks Noble Gas

234
Q
  • LOT 201.41 ESF Load Sequencer*
    • *

What is the MODE III sequence of starting loads?

A
  • 1 Sec:*
  • *480 V Buses**
  • 6 Sec / 10 Sec:*
  • *HHSI / LHSI**
  • 15 Sec:*
  • *Containment Spray** (1st Try)
  • *RCFC (11/12)**
  • 20 Sec / 25 Sec:*
  • *CCW / ECW**
  • 30 Sec:*
  • *AFW**
  • 35 Sec:*
  • *CR / EAB HVAC (Emergency MODE)**
  • *Essential Chilled Water Pump**
  • *Standby Essential Chiller**
  • 40 Sec:*
  • *Containment Spray** (2nd Try / Locks in)
  • 240 Sec:*
  • *Running Essential Chiller(s)**
  • 280 Sec:*
  • *Sequence Complete**
235
Q
  • LOT 201.19 DRPI*
    • *

What will cause a DRPI Urgent Alarm?

A

Data A AND Data B failure

Detector Failure

Control Unit Failure

Generates a RPI Trouble Alarm (CP005) and General Warning.

236
Q
  • LOT 201.21 Containment Isolation*
    • *

What will cause a SL Isolation Signal?

A
  • ≥ P-11:*
  • *Steam Pressure - Low (735 psig) [2/3 on 1/4]**
  • < P-11:*
  • *Steam Pressure Rate - High (100 psig w/ 50 sec TC) [2/3 on 1/4]**
  • No Permissive:*
  • *Containment Pressure - High 2 (3.0 psig) [2/3]**
  • *Manual [1/2] (CP005/CP006)**

P-11: PZR Pressure < 1985 psig [2/3]

Resets located on CP005/CP006.

  • Note:*
  • Isolates MSIVs and MSIV bypass valves.*
237
Q
  • LOT 201.30 Offsite Electrical*
    • *

Which switchyard breakers can be operated from the control room?

A
  • Unit 1:*
  • *Y510 / Y520**
  • Unit 2:*
  • *Y590 / Y600**

Isolates the Main Transformer from the switchyard.

  • Note:*
  • Visual Indication on CP007 AND CP010. Operable from CP007 ONLY.*
238
Q
  • LOT 202.03 Main Turbine*
    • *

How are the throttle and governor valves controlled during a turbine startup?

A
  • 0 RPM - 1700 RPM:*
  • *Governor Valves full open**
  • *Throttle valves control speed**
  • 1700 RPM - 1800 RPM:*
  • *Throttle valves full open**
  • *Governor valves control speed**

Governor valves open in a 2, 3, 1, 4 pattern to minimize stress on the HP turbine 1st stage.

239
Q
  • LOT 202.44 QDPS*
    • *

What will happen to the AFW control valves if power is lost to APC-1 or APC-2?

A
  • APC-1:*
  • *DPU Data is lost**
  • APC-2:*
  • *Flow Control Valves fail As-Is**
  • *Flow indicators will read 0 gpm**
  • On CP006 and QDPS*
  • Can still be controlled in manual if APC-2 lost.
  • Controlled from upper section of APC-2.
240
Q
  • LOT 202.41 Radiation Monitoring*
    • *

What radiation detectors would be important for determining a LOCA IRC?

A
  • *RCB Atmosphere (RT-8011)**
  • Will isolate on CVI*

Containment Purge (RT-8012/8013)

RCB PAMS (RT-8050/8051)

RCB Area (RT-8052 - 8056)

Refueling Bridge (RT-8099)

241
Q
  • LOT 201.20 SSPS*
    • *

What supplies power to the Solid State Protection System (SSPS) logic cabinets?

A
  • Channels 1 and 3 of Logic R:*
  • *DP1201 / DP1203**
  • *E1A11**
  • (125 VDC for shunt trip)*
  • Channels 2 and 4 of Logic S:*
  • *DP1202 / DP1204**
  • *E1B11**
  • (125 VDC for shunt trip)*

Rectifies 120VAC from DP1201 - DP1204 to 48 VDC and 15 VDC.

  • Note:*
  • DP1201 supplies Actuation Train A
  • DP1203 supplies Actuation Train B
  • DP1204 supplies Actuation Train C
242
Q
  • LOT 202.14 SG Feedwater Pumps*
    • *

What speed controllers provide input to the Low / High Pressure governor valves?

A
  • Manual:*
  • *0 RPM - 5700 RPM**
  • SG Level Control:*
  • *3300 RPM - 5600 RPM**

SG Level Control:

  • D/P= FW Pressure - Steam Pressure
    • Reference D/P 0%: 65 psid
    • Reference D/P 100%: 169 psid

Note:
Whichever controller is lower is the one that has control of speed.

243
Q
  • LOT 201.13 ECW*
    • *

What loads does ECW supply?

A

Essential Chillers​

  • ESF DGs:*
  • *Jacket Water HX**
  • *Turbo Charger Combustion Air Cooler**
  • *Lube Oil HX**
  • CCW:*
  • *CCW HX**
  • *CCW Pump Supplementary Cooler**
  • Cools area cooler and CCW pump motor*
244
Q
  • LOT 201.10 ECCS*
    • *

Which valves will not be able to be manually opened if the respective train’s Emergency Sump Outlet Valve (MOV-016) is open?

A

HHSI Mini-Flow Valves (MOV-011/MOV-012)

LHSI Mini-Flow Valves (MOV-013/MOV-014)

RWST Outlet Valves (MOV-001)

To manually open Emergency Sump Outlet Valve:

  • RWST Outlet Valve closed (Manual Only)
  • HHSI Mini-Flow Valve closed [1/2]
  • LHSI Mini-Flow Valve closed [1/2]
245
Q
  • LOT 201.12 CCW*
    • *

What systems operate at a higher pressure than CCW?

A
  • *RHR HX**
  • *RCP Thermal Barrier**
  • *Letdown HX**
  • *Excess Letdown HX**
  • *RCDT HX**
  • *Primary Sample Coolers**
  • *SFP HX**
246
Q
  • LOT 202.44 QDPS*
    • *

What will happen to the SG PORVs if power is lost to APC-1 or APC-2?

A
  • APC-1:*
  • *Data will not be available on DPUs**
  • APC-2:*
  • *Fails closed**
  • When power returns, valve shifts to manual w/ a setpoint of 1225 psig*
  • Can operate SG PORVs locally when APC-2 lost by manipulating 2 valves on actuator assembly.
  • Controlled from upper section of APC-2.
  • Note:*
  • If power to ESF MCC’s are lost, place associated SG PORVs in manual, close the SG PORVs, and dispatch operator to place station blackout power bypass sw. to bypass.
  • This returns control back to MCR.
  • Train “A” MCCs power SG PORV hydraulic pumps A and D.
247
Q
  • LOT 201.39 ESF DGs*
    • *

What jacket water temperature will make the ESF DGs INOPERABLE?

A

< 100 ˚F

Lube Oil Temperature of < 100 ˚F will also make the ESF DG INOPERABLE

248
Q
  • LOT 201.04 PZR, PRT, & RCDT*
    • *

When will the rupture discs on the PRT relieve pressure?

A

100 psig

Normally pressurized with 3 psig N2.

249
Q
  • LOT 201.16 Excore NIs*
    • *

What kind of detectors are the excore NIs?

A
  • Source Range:*
  • *BF3 proportional counter**
  • Intermediate Range:*
  • *Compensated Ion Chamber**
  • Power Range:*
  • *Uncompensated Ion Chamber**
  • Extended Range:*
  • *Fission Chamber**

Accurately measures neutron leakage up to 120%.

250
Q
  • LOT 201.16 Excore NIs*
    • *

How are the source range and intermediate range detectors compensated for gammas?

A
  • Source Range:*
  • *Neutrons and gammas interact with BF3 gas**

Neutron pulse is 10x greater than gamma pulse

  • Intermediate Range:*
  • *Outer Can lined with B-10, Inner can is not**

Outer can detects neutrons and gammas

Inner can detects gammas only

Power range doesn’t need to be compensated b/c detector has low sensitivity to gammas b/c low BF3 gas volume.

251
Q
  • LOT 201.13 ECW*
    • *

What will happen in the ECW system once a ECW pump is started?

A

Starts self cleaning strainer motor

  • *Starts to Open Discharge Valve after 10 sec**
  • If not open (95%) after 25 sec, pump trips (N/A for SI)*

Opens chemical injection valve for associated bay

  • *Opens Blowdown Valves (N/A for train 2A)**
  • Maintain CP002 switches in CLOSE so doesn’t really happen*
  • *Starts ventilation fans**
  • Must be manually secured*
  • Discharge Valve MCC switch in local prevents discharge valve opening when ECW pump starts.
  • Self Cleaning strainer does not have switch in MCR.
  • Note:*
  • Discharge valve will shut 2 mins after ECW pump secures to prevent draining ECW piping to ECW pond and thus preventing water hammer on pump S/U.*
252
Q
  • LOT 201.01 RCB*
    • *

What is the containment average air temperature limit as required in LCO 3.6.1.5 Contaiment Air Temperature?

A

≤ 110 ˚F

Determined by looking at running RCFC inlet temperatures.

253
Q
  • LOT 202.09 Steam Dumps*
    • *

What does the Imp Selector switch do on CP007?

A
  • Defeat PT-505:*
  • *PT-506 used for C-5 interlock**
  • Defeat PT-506:*
  • *Nothing**

C-5: Turbine Impulse pressure < 15% [1/1]

  • Stops AUTO outward rod motion.
254
Q
  • LOT 201.06 CVCS*
    • *

When will the letdown temperature divert valve (TCV-143) automatically bypass the demins?

A

Letdown HX Discharge Temp - High (137 ˚F)
OR
BTRS Demin Inlet Temp - High (157 ˚F)

Located on CP004

  • Note:*
  • Loss of Air/voltage fails to divert.*
255
Q
  • LOT 201.20 SSPS*
    • *

Plant Conditions:

  • Rx Trip
  • One of the Rx trip breakers does not open (P-4 not met)

How would the operator stop SI equipment following an inadvertant SI actuation?

A
  • SI signal still active:*
  • *Pull to lock**
  • Set / Reset → Set is dominant so SI reset will NOT work*
  • SI signal clear:*
  • *Reset SI**
  • (CP001)*
  • *Reset sequencer**
  • (CP003)*
  • *Stop equipment**
  • Latch/ Reset → Reset is dominant so SI reset will work*

If SI signal comes back, SI equipment will restart if not in pull to lock.

256
Q
  • LOT 201.33 Non-Class DC*
    • *

What powers the 125VDC Bus 1B Battery Chargers?

A

MCC 1A5

MCC 1G8 (TSC DG)

257
Q
  • LOT 202.03 Main Turbine*
    • *

What will auto open the exhaust hood spray valves?

A

Crossover Steam Pressure < 15%
AND
Turbine Speed > 600 RPM

  • Maintains spray pressure 116 psig (40 gpm)
  • Alarm set at 175 ˚F

Note:
Controlled on CP007

258
Q
  • LOT 201.42 SFP Cooling*
    • *

With regards to tech specs, what is the minimum boron concentration of the SFP?

A

2500 ppm

Basis: Need 2200 ppm to maintain keff < 0.95 during a DBA of loading fuel in the wrong spot. 2500 ppm provides extra margin.

NRC Review (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions