EO 1 Block 3 Aux Feedwater Flashcards by Cody Rook

Which ONE of the following is a purpose of the Auxiliary Feedwater system?

A. Provide feedwater to BOTH steam generators during plant startups.
B. Promote natural circulation in the RCS during a large break LOCA.
C. Remove decay heat via the Steam Generators when in Mode 5.
D. Provide feedwater to BOTH steam generators on a loss of off site AC power.

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The following plant conditions exist:
MU/HPI cooling is in progress due to a loss of all feedwater.
Which one of the following methods should be used to restore feedwater to the steam generators?

A. MDFP in the Main Feedwater mode at less than 800 gpm
B. MDFP in the Auxiliary Feedwater mode with 1200 gpm to the SGs
C. Main Feed Pump at 1.0 mpph
D. Auxiliary Feed Pump at less than 225 gpm

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The Auxiliary Feed Water Pumps can take suction from EITHER the (approved sources):

A. Condensate Storage Tanks or the Dearators
B. Condensate Storage Tanks or the Service Water system.
C. Borated Water Storage Tanks or the Service Water System
D. Borated Water Storage Tanks or the Dearators

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What system provides an AUTOMATIC backup source of water to the Auxiliary Feed Pumps?

A. Fire Water System
B. Service Water System
C. Deaerator Storage Tanks
D. Condensate Storage Tank

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Which one of the following identifies where the Motor Driven Feed Pump taps into Auxiliary Feedwater Train 1?

A. Between AF 608 and the Containment penetration.
B. Between the AFW FLOW ELEMENT AND AF 608.
C. Between AF 3870 and THE AFW FLOW ELEMENT.
D. Between the Auxiliary Feedwater Pump Target Rock valve and AF 3870.

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Which ONE of the following describes the supply source(s) for the Auxiliary Feedwater System?

A. Condensate pumps provide net positive suction head for the Auxiliary Feedwater pumps.
B. Suction for Auxiliary Feedwater pumps shifts to the Service Water System AUTOMATICALLY
on LOW Condensate Storage Tank level alarm.
C. Condensate Storage Tank suction valves (FW-786/790) to Auxiliary Feedwater pumps
AUTOMATICALLY OPEN when an Auxiliary Feedwater pump starts.
D. The Condensate Storage Tanks reserve a MINIMUM of 250,000 gallons for Auxiliary
Feedwater usage.

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Which ONE of the following is NOT correct regarding the Auxiliary Feedwater System flowpath?

A. Check valves are the ONLY isolation between the CSTs and the OTSGs with AFW in its
NORMAL lineup.
B. MS Line 2 to AFW 1 Isolation Valve (MS 106) and MS Line 1 to AFW 21solation Valve (MS
107 A) are normally OPEN in MODES 1, 2 and 3.
C. AFW 1 to SG 1 Stop Valve (AF 3870) and AFW 2 to SG 2 Stop Valve (AF 3872) are normally
OPEN in MODES 1, 2, 3.
D. Closing AFW 1 SG Level Control Valve (AF 6452) OR AFW 2 SG Level Control Valve (AF
6451) isolates ALL AFW flow from that AFW pump to the OTSGs.

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The following plant conditions exist:
A loss of off-site power has occurred
Steam Generator pressures are both 900 psig
RCS Pressure is 1500 psig and lowering slowly
Select the Auxiliary Feedwater response and Once Through Steam Generator level response.

A. BOTH Auxiliary Feedwater Pumps start and maintain Steam Generator levels at 49 inches
B. BOTH Auxiliary Feedwater Pumps start and maintain Steam Generator levels at 124 inches
C. ONE Auxiliary Feedwater Pump starts and maintains Steam Generator levels at 55 inches
D. ONE Auxiliary Feedwater Pump starts and maintains Steam Generator levels at 130 inches

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Which ONE of the following statements is correct concerning the Auxiliary Feedwater System?

A. The Auxiliary Feedwater Pump Turbines receive steam from the 235# Auxiliary Steam Header
when aligned for normal 100% power by Operations
B. The Auxiliary Feedwater Steam Generator nozzles are located high in the Steam Generator to
promote natural circulation.
C. The Auxiliary Feedwater Pump Turbine exhaust is routed to containment in the event of a
steam generator tube rupture.
D. Steam Generator level is NORMALLY maintained by controlling Auxiliary Feedwater Pump
Turbine speed.

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The following plant conditions exist:
* A reactor trip from 100% has occurred due to the trip of all four RCPs.
* Natural circulation cooldown using AFW is in progress.
* The decision is made to feed the SGs with MFW so that AFW can be secured.
Which one of the choices below accurately describes the initial effect of the AFW to MFW transition
on core Differential Temperature (T-hot minus T-cold)? Note: Assume SG levels do not change.

A. Core Differential Temperature will remain the same because changing to MFW has no effect
on natural circulation flow.
B. Core Differential Temperature will INCREASE because changing to MFW INCREASES
natural circulation flow.
C. Core Differential Temperature will DECREASE because changing to MFW DECREASES
natural circulation flow.
D. Core Differential Temperature will INCREASE because changing to MFW DECREASES
natural circulation flow.

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The following plant conditions exist:
* The plant is operating at 75% power.
* All equipment is operating normally.
The following event occurs:
* An SFRCS actuation occurred due to SG 2 low steam pressure.
* LT SP 983, SG 1 Startup Level Transmitter, slowly drifts high.
* RCS pressure is 1950 psig and steady.
* RCS temperature is 540 °F and steady.
* Containment pressure is 14.7 psia and steady.
Assuming NO operator action, SG 1 will _____ _

A. boil dry
B. be maintained at 49 inches
C. be maintained at 55 inches
D. be maintained at 124 inches

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Sequence of events:
* Reactor power is 100%
* ICS in full automatic
The following events occur:
* Turbine trip causes a reactor trip
* RCPs 1-1 and 1-2 trip.
Based on these conditions, identify the ONE statement below that describes automatic response of
the (1) Main Feedwater system and (2) AFW system.

A. (1) Main Feedwater controls both SG levels at 40 inches.
(2) AFW remains secured.
B. (1) Main Feedwater controls SG #1 level at 40 inches and SG #2 level at 49 inches.
(2) AFW remains secured.
C. (1) Main Feedwater controls SG #2 at 40 inches.
(2) AFW actuates and controls SG #1 at 49 inches.
D. (1) Main Feedwater remains available to control both SG levels at 40 inches.
(2) AFW actuates, and controls both SG levels at 49 inches.

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The plant is operating at 100% power.
The following indications are observed:
* AFP 1 TRBL annunciator.
* MS106, MS Line 1 to AFPT 1 Isolation Valve, indicates closed.
* MS106A, MS Line 2 to AFPT 1 Isolation Valve, indicate closed.
* There are no indications of a steam leak.
Procedure DB-OP-02010, Feedwater Alarm Panel 10, NOTE 3.2.4.a., says to open MS106A slowly
using the manual handwheel.
The reason for this NOTE is to ______ _

A. reset the AFP 1 LOW STEAM PRESSURE TRIP
B. lower the differential pressure across the MS106A while opening
C. prevent water hammer
D. to ensure MS 726, MS Line 1 to AFPT 1 Check Valve, seats

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Which ONE of the following describes the Service Water system interlock for supplying a BACKUP
suction source to the Auxiliary Feedwater Pumps?

A. Service Water AUTOMATICALLY aligns to Auxiliary Feedwater if Auxiliary Feedwater Pump
suction pressure is below 2 psig for 10 seconds.
B. Service Water AUTOMATICALLY aligns to Auxiliary Feedwater if Auxiliary Feedwater Pump
suction pressure is below 10 psig for 5 seconds.
C. Service Water may be MANUALLY aligned to Auxiliary Feedwater when Auxiliary Feedwater
Pump suction pressure has been below 2 psig for 10 seconds.
D. Service Water may be MANUALLY aligned to Auxiliary Feedwater when Auxiliary Feedwater
Pump suction pressure has been below 10 psig for 5 seconds.

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While at 50% power, Main Steam Line 1 ruptures in Containment.
The following conditions are observed:
* Steam Generator 1 pressure -12 psig (stable)
* Containment pressure -26 psia (stable)
* Reactor Coolant System temperature -511 °F (decreasing)
* Reactor Coolant System pressure -1600 psig (decreasing)
Which one of the following describes the response of the Auxiliary Feedwater System?

A. BOTH Auxiliary Feedwater Pumps will be aligned to Steam Generator 2 and level will be
controlled at 55 inches.
B. EACH Auxiliary Feedwater Pump will be aligned to its own Steam Generator and level will be
controlled at 49 inches.
C. BOTH Auxiliary Feedwater Pumps will be aligned to Steam Generator 2 and level will be
controlled at 130 inches.
D. EACH Auxiliary Feedwater Pump will be aligned to its own Steam Generator and level will be
controlled at 124 inches.

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Which of the following valves receives a Steam Feed Rupture Control System signal?

1 . MS 107 A- MS Line #1 to AFPT #2
2 . ICS 38D-Trip throttle Valve (TTV) for #2 AFPT
3. MS 5889B-#2 AFPT Steam Admission Valve
4 . AF 6451-#2 AFP Level Control Valve
5 . AF 3872-#2 AFP to SG#2 Stop Valve
6. AF 599 -AFW to SG#2 Discharge Isolation Valve

A. 1, 3, 5
B. 1, 4, 5
C. 2,3,5
D. 2,4,6

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Plant conditions are as follows:
* An Steam Feed Rupture Control System Isolation TRIP has occurred following a loss of
BOTH Main Feedwater pumps.
* The operator has depressed the LOW level select pushbuttons for the Auxiliary Feedwater
System located on the Safety Features Actuation System panel.
Which ONE of the following describes the Steam Generator levels maintained by Auxiliary
Feedwater if a Safety Features Actuation System Level 2 actuation subsequently occurs?

A. Steam Generator #1 at 49 inches, Steam Generator #2 at 49 inches
B. Steam Generator #1 at 49 inches, Steam Generator #2 at 55 inches
C. Steam Generator #1 at 124 inches, Steam Generator #2 at 124 inches
D. Steam Generator #1 at 124 inches, Steam Generator #2 at 130 inches

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The following plant conditions exist:
* Emergency Diesel Generator 1 is inoperable due to routine maintenance.
* While operating at 100% power, all Off-Site power is lost.
* Emergency Diesel Generator 2 fails to energize D1 Bus.
* Reactor Coolant System pressure is 1735 psig and Reactor Coolant System Temperature is
555 °F. Steam Generator levels will be controlled at ____ inches on the Startup Range.

A. 55
B. 49
C. 124
D. 40

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The following plant condition exist:
* Safety Features Actuation System has actuated on low Reactor Coolant System pressure.
* All Reactor Coolant Pumps have been tripped.
* No other control panel manipulations have been made.
The Steam Generator 2 Auxiliary Feedwater HIGH/LOW level control select switch on the Safety
Features Actuation System panel is BLOCKED and the LOW pushbutton is pressed.
Which one of the following describes the SG level control setpoints under these conditions?
Steam Generator 1 controls at __ inches; Steam Generator 2 controls at __ inches.

A. 40; 40
B. 49; 49
C. 124; 49
D. 124; 124

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The following plant conditions exist:
* Seismic event
* Loss of offsite power
* The condensate storage tanks common outlet line is RUPTURED
* Service Water Pump 1 FAILED to start
Which ONE of the following represents the Auxiliary Feedwater System status after 15 minutes?
(NO OPERATOR ACTIONS ARE TAKEN.)
Auxiliary Feedwater Pump 1 is ____ . Auxiliary Feedwater Pump 2 is ___ _

A. running; running
B. stopped; running
C. running; stopped
D. stopped; stopped

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While at 50% power, Main Steam Line 1 ruptures in Containment.
The following conditions are observed:
* Steam Generator 1 pressure - 11 psig
* Containment pressure - 26 psia
* Reactor Coolant System Temperature - 511 “F
* Reactor Coolant System Pressure - 1580 psig
Which of the following describes the response of the Auxiliary Feedwater System? (Assume all
safety systems function as designed.)

A. Both Auxiliary Feedwater Pumps will be aligned to Steam Generator 2, and Auxiliary
Feedwater will control level at 55”.
B. Each Auxiliary Feedwater Pump will be aligned to its own Steam Generator, and Auxiliary
Feedwater will control level at 49”.
C. Both Auxiliary Feedwater Pumps will be aligned to Steam Generator 2, and Auxiliary
Feedwater will control level at 130”.
D. Each Auxiliary Feedwater Pump will be aligned to its own Steam Generator, and Auxiliary
Feedwater will control level at 124”

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Plant conditions are as follows:
* An Steam Feed Rupture Control System Isolation TRIP has occurred following a loss of
BOTH Main Feedwater pumps
* The operator has depressed the LOW level select pushbuttons for the AUxiliary Feedwater
System located on the Safety Features Actuation System panel
Which ONE of the following describes the Steam Generator levels maintained by Auxiliary
Feedwater System if a Safety Features Actuation System Level 2 actuation subsequently occurs?

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Steam Generator 1 pressure is less than the Steam Feed Rupture Control System LOW PRESSURE trip setpoint.
From the following list, select the response that describes the effect on Steam Feed Rupture Control System components if Steam Generator 2 pressure also drops below the Steam Feed Rupture Control System low pressure trip setpoint without being blocked.

A. Steam Feed Rupture Control System will isolate Steam Generator 2, realigning Auxiliary
Feedwater to feed Steam Generator 1 .
B. Steam Feed Rupture Control System will isolate Auxiliary Feedwater flow to Steam Generator
2, but will NOT realign to feed Steam Generator 1.
C. Steam Feed Rupture Control System will maintain the current Auxiliary Feedwater System
alignment.
D. Steam Feed Rupture Control System will realign Auxiliary Feedwater 1 to Steam Generator 1
and Auxiliary Feedwater 2 to Steam Generator 2.

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The following plant conditions exist:
* All Reactor Coolant Pumps are tripped.
* Safety Features Actuation System Actuation Channel 2 has failed to actuate.
* A small break Loss of Coolant Accident has caused a loss of adequate subcooling margin.
Determine what operator action is required to allow Steam Generator 2 to be automatically
controlled at the proper setpoint.

A. Manually select the high setpoint using HIS 6454, AFW Train 2 Hi/Lo Level Setpoint.
B. Depress the SEL button on UC 6451, AFW 2 Level Control Valve until Over Ride Setpoint is
displayed.
C. Manually raise Steam Generator level to set point then place UC 6451, AFW 2 Level Control
Valve, into automatic
D. Depress HIS 6403 and HIS 6404 to initiate an Steam Feed Rupture Control System Initiation
and Isolation trip.

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The plant is operating at 100% power.
* A total loss of ALL on-site and off-site AC power occurs.
If no operator action is taken, Auxiliary Feedwater Pump 2 will receive steam from Steam
Generator __ and supply feedwater to Steam Generator __ .

A. 1. 1
B. 2; 1
C. 1; 2
D. 2; 2

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The plant was operating at 100% power.
A rupture occurred on Main Feedwater Line 2 downstream of SP6A, Main Feedwater Control Valve
and upstream of FW 156, FW Loop 2 Check Valve. Auxiliary Feedwater Pump #1 feeds Steam Generator # __ . Auxiliary Feedwater Pump #2 feeds Steam Generator# __

A. 1; 2
B. 2; 2
C. 1;
D.

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The following plant conditions exist:
1 . Reactor power was steady state at 7 5%.
2. Both main feedwater pumps tripped.
Which ONE of the following describes the auxiliary feedwater response and Steam Generator level
response?

A. Both auxiliary feedwater pumps start and maintain Steam Generator levels at 49 inches.
B. Both auxiliary feedwater pumps start and maintain Steam Generator levels at 124 inches.
C. One auxiliary feedwater pump starts and maintains Steam Generator levels at 55 inches.
D. One auxiliary feedwater pump starts and maintains Steam Generator levels at 130 inches.

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The following plant conditions exist:
1. An Safety Features Actuation System Level 2 actuation has occurred in conjunction with an
Steam Feed Rupture Control System trip.
2. Steam Generator 1 is being fed by Auxiliary Pump 2.
3. No other actions were taken.
Steam Generator 1 level will be maintained at which ONE of the following levels?

A. 49inches
8. 55inches
C. 124inches
D. 130inches

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Which ONE of the following correctly describes the response of the Auxiliary Feedwater System to
an Steam Feed Rupture Control System actuation? (Assume no SFAS, unless stated.)

A. Low Main Steam pressure signal on Steam Generator 2 will result in Auxiliary Feedwater
Pump 2 turbine maintaining Steam Generator 1 at 55 inches while Auxiliary Feedwater Pump
Turbine 1 level control valve (AF 6451) will be closed.
8. Low Steam Generator level signal on Steam Generator 1 will result in Auxiliary Feedwater
Pump 1 and Auxiliary Feedwater Pump 2 turbines both feeding Steam Generator 1 to maintain
its level at 49 inches.
C. Safety Features Actuation System Level 2 actuation signal with a valid high Steam Generator
level Steam Feed Rupture Control System trip signal will result in each Auxiliary Feedwater
Pump turbine feeding its own Steam Generator, maintaining level at 130 inches.
D. With the Auxiliary Feedwater Pump turbine discharge valves cross-connected, a Steam Feed
Rupture Control System signal on low Steam Generator level on Steam Generator 1 will result
in Auxiliary Feedwater Pump 2 turbine controlling Steam Generator 2 level at 55 inches if AF
3870 (AFP 1 to SG 1) comes off its open seat.

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If a Steam Feed Rupture Control System actuation was to occur due to loss of both main feed
pumps, at what level would the Auxiliary Feedwater System control the Steam Generators?

A. Steam Generator - 49 inches; Steam Generator - 55 inches.
B. Steam Generator 1 - 55 inches; Steam Generator 2 - 49 inches.
C. Steam Generator 1 - 49 inches; Steam Generator - 49 inches.
D. Steam Generator 1 - 124 inches; Steam Generator 2 - 124 inches.

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The following plant conditions exist:
* The plant was operating at 100% power.
* Service Water Pumps 1 and 2 were in service.
The following events occurs:
* A seismic event.
* Loss Of Offsite Power (LOOP).
* Rupture of the Condensate Storage Tank piping to the Auxiliary Feedwater pumps.
* Service Water Pump 1 fails to restart.
In response to this event:
* Auxiliary Feedwater Pump 1 starts ___ _
* Auxiliary Feedwater Pump 2 starts ___ _

A. then stops, then stops
B. then stops, and continues to run
C. and continues to run, then stops
D. and continues to run, and continues to run

The following plant conditions exist:
* Steam Feed Rupture Control System has been manually actuated due to a loss of all three
Condensate Pumps
* Auxiliary Feedwater Pump 2 failed to start
* Motor Driven Feed Pump is supplying Auxiliary Feedwater to Steam Generator 2
* An Steam Feed Rupture Control System low pressure trip on Steam Generator 2 occurs.
Assuming NO further operator actions, determine which ONE of the following choices describes the
Auxiliary Feedwater System alignment.

A. Auxiliary Feedwater Pump 1 is supplying Steam Generator 1, Motor Driven Feedwater Pump
is supplying Steam Generator 1
B. Auxiliary Feedwater Pump 1 is supplying Steam Generator 1, Motor Driven Feedwater Pump
is supplying Steam Generator 2
C. Auxiliary Feedwater Pump 1 is NOT supplying either Steam Generator, Motor Driven
Feedwater Pump is supplying Steam Generator 1
D. Auxiliary Feedwater Pump 1 is NOT supplying either Steam Generator, Motor Driven
Feedwater Pump is supplying Steam Generator 2

A reactor trip from 50% power occurred.

Steam Generator1 pressure lowered to 8 psig
Containment pressure rose to 22.8 psia
Which one of the following describes the response of the Auxiliary Feedwater System?

A. Both Auxiliary Feewater Pumps will be aligned to Steam Generator 2 and will control level at
55 inches.
B. Each Auxiliary Feewater Pumps will be aligned to its own Steam Generator and will control
level at 49 inches.
C. Both Auxiliary Feewater Pumps will be aligned to Steam Generator #2 and will control level at
130 inches.
D. Each Auxiliary Feewater Pumps will be aligned to its own Steam Generator and will control
level at 124 inches.

At full power, a loss of ________ will cause the Auxiliary Feedwater pumps to autostart.
Assume no operator action.

A. both Service Water Pumps
B. all Circulating Water Pumps
C. Aux 11 Transformer
D. the running CCW Pump

Plant conditions:
* The plant tripped from 100% power due to a large steam leak on Steam Generator 1.
* Safety Features Actuation System Level 2 has actuated on low Reactor Coolant System
pressure.
* Steam Feed Rupture Control System has isolated Steam Generator 1 on low Steam
Generator pressure.
* Neither Auxiliary Feedwater pump started when Steam Feed Rupture Control System
actuated.
* Auxiliary Feedwater Pump 1 was manually started.
* Auxiliary Feedwater Pump 2 remains Out of Service.
With the above conditions, Steam Generator 2 will have to be fed to ___ _

A. 55 inches at a controlled rate using the Auxiliary Feedwater Pump
B. 130 inches at full continuous flow using the Auxiliary Feedwater Pump
C. 40 inches at a controlled rate using the Motor Driven Feedwater pump
D. 49 inches at full continuous flow using the Motor Driven Feedwater pump

Which ONE of the following systems is used for positioning of the Auxiliary Feed Water flow control
valves AF 6451/6452, AFP Target Rock valves?

A. Electrohydraulic
B. Instrument air
C. Essential DC power
D. Nonessential AC power

Which ONE of the following power supplies is the source of power for the Auxiliary Feed Water
(AFW) pump #1 and AFW pump #2 level control valves (AF 6452 and AF 6451 )?

A. D1P,D2P
B. E11E, F11A
C. Y1A, Y2A
D. YAU, YBU

Which ONE of the following provides the motive force for the Auxiliary Feedwater flow control
valves (AF 6451 and AF 6452)?

A. Essential DC power
B. Essential AC power
C. Instrument Air
D. Electrohydraulic

Both Auxiliary Feed Water pumps are shut down with the plant at full power.
Instrument Air pressure is then lost to the Auxiliary Feed Pump Pump steam admission valve (MS 5889A).
Which ONE of the following is an expected consequence of this event:
The associated ___ _

A. Trip Throttle Valve will TRIP.
B. Auxiliary Feed Pump suction valve will AUTO OPEN.
C. MINIMUM flow recirc back to the CST will OPEN.
D. Auxiliary Feed Pump discharge valve will modulate CLOSE

The Auxiliary Feed Pump room vent fan will auto start at 104 °F and will auto stop at ____ ?
(Setpoint Required)

A. 80 °F
B. 85 °F
C. 90 °F
D. 95 °F

Which ONE of the following is the 100% capacity of an Auxiliary Feed Pump?

A. 1 050 gpm at 1082 psid
B. 1200 gpm at 1200 psig
C. 1450 gpm at 1282 psid
D. 2082 gpm at 1250 psig

The cavitating venturis in the Auxiliary Feedwater System are installed to ____ _

A. limit Motor Driven Feedwater Pump flow to 800 gpm when feeding both steam generators
following a steam line break.
B. prevent runout of the Motor Driven Feedwater Pump
C. limit auxiliary feedwater flow to 800 gpm to a depressurized steam generator.
D. prevent overspeed of an Auxiliary Feedwater Pump supplying a depressurized Steam
Generator.

The cavitating venturis in the Auxiliary Feedwater System are installed to ___ _

A. limit Auxiliary Feedwater flow to 800 gpm to each steam generator
B. limit Auxiliary Feedwater flow to 1050 gpm to each steam generator
C. ensure Auxiliary Feedwater flow is maintained greater than 800 gpm to each steam generator
D. ensure Auxiliary Feedwater flow is maintained greater than 1050 gpm to each steam
generator

Which of the following power supplies are the sources of power for the Auxiliary Feedwater Pump
1 discharge to Steam Generator 1 (AF3870) and the Auxiliary Feedwater Pump 2 discharge to
Steam Generator (AF3872)?

A. E11E, F12A
B. Y1A, Y2A
C. D1PA, F12B
D. E11C, D2P

After a loss of off-site power, DCMCC2 deenergizes.
Which of the following is correct for SG level control to prevent an overcooling?

A. SG 1 in automatic control at 124”; SG 2 in manual control.
B. SG 1 in automatic control at 49”; SG 2 in automatic control at 49”.
C. SG 1 in automatic control at 49”; SG 2 in manual control.
D. SG 1 in manual control; SG 2 in manual control.

After a loss of off-site power, DCMCC2 deenergizes.
Which ONE of the following is correct for SG level control to prevent an overcooling?

Twenty minutes following the completion of the surveillance test for AFPT 1, a loss of main
feedwater occurred. AFPT 1 tripped on overspeed following the SFRCS actuation.
Which one of the following was the cause of the AFPT trip?

A. The AFPT initial roll following the surveillance test was NOT done using the Trip Throttle
Valve.
B. E&C had NOT been contacted when “BATLO” alarm appeared on the Foxboro controller for
AF 6451 after previously running the AFPT.
C. The oil level on the governor was above the mark on the sight glass after previously running
the AFPT.
D. The governor was NOT driven to the High Speed Stop, then to the Low Speed Stop, and then
back to the High Speed Stop after previously running the AFPT.

A plant startup is in progress with power at 10-8 amps. MS 5889A, AFPT 1 Steam Admission
Valve, fails open.
Determine what source(s) of water will be feeding each SG.

A. Condensate Storage Tanks will supply both SGs
B. Deaerators will supply both SGs
C. Condensate Storage Tanks will supply SG 1, Deaerators will supply SG 2
D. Condensate Storage Tanks will supply SG 2, Deaerators will supply SG 1

The Motor Driven Feed Pump is feeding Steam Generator No. 1 in the Aux. Feedwater mode.
The MDFP Target Rock discharge valve FW 6459 loses power.
MDFP flow to SG 1 will ____ _

A. Not change.
B. lower to about 25 gpm.
C. rise to around 800 gpm.
D. rise to MDFP runout conditions.

What would be the adverse consequence if BOTH of the Motor Driven Feed Pump Target Rock
Discharge Valves were NOT enabled prior to starting the MDFP in the aux. feedwater mode?

A. Thermal shock of the SG tubes.
B. Overheating of the RCS.
C. Runout of the MDFP.
D. Thermal shock of the SG lower tube sheet.

Which of the following are LOCAL indications for the Auxiliary Feed Water System?

Auxiliary feed flow
Auxiliary Feedwater Pump Turbine Exhaust pressure
Auxiliary Feedwater Pump Turbine RPM
Open/close lights for steam admission valves

A. 1, 2, 3
B. 1, 2, 4
C. 1, 3, 4
D. 2, 3, 4

The sentinel valve on the Auxiliary Feed Pump Turbine provides audible indication.
The purpose for this indication is to inform the operator _____ _

A. of an overspeed condition.
B. that the pump has started.
C. of an over pressure condition.
D. that steam is in the turbine casing.

The sentinel valve on the Auxiliary Feed Pump Turbine provides audible indication.
The purpose for this indication is to inform the operator _____ _

A. of an overspeed condition.
B. that the pump has started.
C. of an over pressure condition.
D. that steam is in the turbine casing.

What is the location of the #1 Auxiliary Feedwater Pump vibration alarm panel.

A. #1 Auxiliary Feedwater Pump room South East corner.
B. #2 Auxiliary Feedwater Pump room South East corner.
C. 585 elevation North Heater bay
D. 585 elevation South Heater bay.

What specific condition will cause “SG1 to AFPT 2 Main Steam Pressure Low” Alarm to actuate?

A. 730 psig ± 20 psig
B. 680 psig ± 20 psig
C. 630 psig ± 20 psig
D. 610 psig ± 20 psig

Which ONE of the following conditions would initiate annunciator 10-4-G, AFP 1 TRBL?

A. Auxiliary Feedwater Pump 1 discharge valve (AF 6452) in LOCAL.
B. Auxiliary Feedwater Pump 1 suction pressure 11.0 psig.
C. Auxiliary Feedwater Pump Room 1 flooded with 3 feet of water.
D. Auxiliary Feedwater Pump Turbine 1 steam admission valve MS5889A CLOSED and Auxiliary
Feedwater Pump Turbine 1 governor valve CLOSED.

An l&C technician is in the back of the Auxiliary Shutdown Panel and inadvertently places HS
SP9B3, SG 1 to AFP 1 Level Control Test Switch in TEST. Which ONE of the following will be an
indication in the Control Room of his action?

A. Annunciator 7-6-B, REMOTE SHUTDOWN PANEL IN OPERATION
B. Annunciator 10-4-6, AFP 1 TRBL
C. Local (‘L’) indicated on UC6452, Auxiliary Feedwater Pump 1 level controller
D. Amber “SD PNL” light comes ON above Auxiliary Feedwater Pump Turbine 1 governor control
on the CTRM front console

Which ONE of the following indications will the Control Room receive if the Auxiliary Feedwater
Pump Turbine 1 governor control LOCAUREMOTE switch on the Remote Shutdown Panel is
placed in the LOCAL position?

A. Annunciator REMOTE SHUTDOWN PANEL IN OPERATION (7-6-B) AND LOCAL (‘L’)
indicated on Auxiliary Feedwater Pump 1 level control (UC 6452).
B. Annunciator REMOTE SHUTDOWN PANEL IN OPERATION (7-6-B) AND amber ‘SD PNL’
light above Auxiliary Feedwater Pump Turbine 1 governor control (IL ICS38B).
C. Annunciator AFP 1 TRBL (10-4-G) AND amber ‘SD PNL’ light above Auxiliary Feedwater
Pump Turbine1 governor control (IL ICS38B).
D. Annunciator AFP 1 TRBL (10-4-G) AND LOCAL (‘L’) indicated on Auxiliary Feedwater Pump 1
level control (UC 6452).

With ONE Auxiliary Feedwater System inoperable, restore the inoperable system to OPERABLE
status within ___ _
With any Auxiliary Feed Pump Turbine Inlet Steam Pressure Interlocks inoperable, restore the
inoperable interlocks to OPERABLE status within ____ _

A. 12 hours; 72 hours
B. 72 hours; 24 hours
C. 72 hours; 7 days
D. 7 days; 24 hours

Which of the following describes the status of the Auxiliary Feedwater train Technical Specification,
if the ventilation in the same Auxiliary Feedwater Pump room is inoperable?

A. The Auxiliary Feedwater train is inoperable
B. The Auxiliary Feedwater train will become inoperable in 72 hours
C. If room temp.< 95 °F, one fan is adequate for both trains
D. Fans are required to be operating.

Which ONE of the following conditions would initiate annunciator 10-4-G, AFP 1 TRBL?

A. AFP 1 discharge valve (AF 6452) in OPEN.
B. AFP 1 suction pressure 11.0 psig.
C. AFP Room 1 flooded with 3 feet of water.
D. AFPT 1 steam admission valve MS5889A CLOSED and AFPT 1 governor valve CLOSED.

Which ONE of the following is the purpose of the Control Room alarm “SG1 to AFPT 2 MN STM
PRESS LO”.

A. Warning that steam demand is excessive for the current Reactor Coolant System heat rate.
B. Indicate steam pressure may be insufficient to run the Auxiliary Feed Pump Turbine.
C. Warning of a possible steam line break to the Auxiliary Feed Pump Turbine.
D. Indicate the Steam Feed Rupture Control System low steam press trip can be blocked.

The plant has tripped from 100% power due to a steam leak on Steam Generator 1 .
SFRCS actuated.
Auxilary Feedwater Pump 1 bearings are being cooled _____ _

A. from AFW Pump 1 discharge recirc line cooler which is cooled by Service Water
B. directly from Service Water
C. directly from the the AFW Pump 1 discharge recirc line
D. from AFW Pump 2 recirc line

Select the correct sequence listed below for resetting the Auxiliary Feedwater Pump #1 Turbine
Trip Throttle Valve (ICS 38C) after having been tripped using the Manual trip lever;

A. Unseal ICS 38C (AFPT #1 TRIP THROTTLE VALVE), turn ICS 38C counterclockwise until the
valve is full open, check no gap exists at trip hook, pull connecting rod to the “reset” position,
reseal ICS 38C.
B. Pull connecting rod to “reset” position while holdling the tappet down, unseal ICS 38C ( AFPT
#1 TRIP THROTTLE VALVE), turn ICS 38C clockwise until the Latch-up lever contacts the
stop on the valve yoke, push on the trip hook until no gap exists, Open ICS 38C and then
close 1/4 turn, re-seal ICS 38C.
C. Open ICS 38C (AFPT #1 TRIP THROTTLE VALVE), unseal ICS 38C manual handwheel,
Turn ICS 38C manual handhweel in the counter-clockwise direction until no gap exists
between trip hook and yoke, pull connecting rod to the “reset” position, re-seal ICS 38C.
D. ICS 38C can be reset remotely from the Contol room.

When resetting the #1 Auxiliary Feed Pump Turbine Trip Throttle valve, ICS 38C, the handwheel
must be first turned in the clockwise direction to ensure:

A. the Latch-up lever contacts the stop on the valve yoke so as to engage the trip hook.
B. the valve is completely closed before the connecting rod is pulled to the “reset” position.
C. the valve is in the open position prior to resetting the connecting rod.
D. the connecting rod can be reset when the valve yoke is 3/4 from full open.

The following conditions exist:
- Loss of off-site power has occurred due to major storms in the area.
- SFRCS has actuated due to loss of Reactor Coolant pumps
- SBODG is supplying D2
_ The following alarms are received in the Control
Room:
- AFP 1 TRBL (10-4-G)
- AFP 1 OVERSPEED TRIP (10-2-G)
The initial operator response is:

A. Feed both OTSGs from the MDFP and #1 AFP.
B. Feed the #1 OTSG from the MDFP.
C. Feed both OTSG from the #2 AFP.
D. Feed neither OTSG until #1 AFP is restored.

2 AFP TRBL (10-4-H) Annunciator alarm has been received due to low suction pressure to #2

AFP because of a rupture in the common suction line from the CST. SW 1383 does not open. 3
minutes later the RO recognizes the failure and opens SW 1383. Which of the following actions
occur as a result of this valve being opened when an SFRCS signal is present?

A. No actions occur.
B. MS 5889B will re-open.
C. MS 107 and MS 107A re-open.
D. The RO must re-open MS 5889B when MS 107 and 107 A open.

An unisolable rupture of the Main Steam line to the Aux.Feedwater Pump line has just occurred in
MPR2.
The maximum time allowed before feedwater must be isolated to the SG is ____ .minutes.

A. 2
B. 10
C. 20
D. 30

Plant conditions:
* Reactor trip from 100% power due to loss of both Main Feedwater Pumps.
* Both AFW Pumps are operating normally.
* SG level indications on the AFW and PAM panels:
#1 SG - below required level and lowering.
#2 SG - at required level and stable.
* AFW flows:
SG #1 = 35 gpm
SG #2 = 400 gpm
* Status indications on the Target Rock level controller for #1 AFW Pump:
AUTO light is illuminated.
Level display indicates 250 inches.
Based on these conditions, identify the ONE selection below that describes a method to control the
required level in OTSG #1.

A. Select the Alternate “Y” SG level transmitter for SG #1.
B. Take Manual control of AFPT 1 Governor and control AFPT 1 Speed to maintain level.
C. Open AF 3871, AFW Pump 2 to SG 1, and control level with AFW Pump 2.
D. Select MANUAL on the #1 AFW Pump level controller and control level manually.

The minimum allowable feedwater temperature to the Steam Generator Auxiliary Feedwater

nozzles is:
A. 75 ° F.
B. 125 ° F.
C. 40 ° F.
D. 150 ° F.

Which of the following alarms on the FOXBORO contoller for AF 6451 or AF 6452 will NOT cause
the associated targetrock to become inoperable?

A. “RAM”
B. “CALIB”
C. “BATLO”
D. “WDTTO”

What is the proper procedure that should be entered once the Control Room SRO has determined
that neither AFW pump is available after a Loss of Off-site power?

A. DB-OP-02000, Section 5 - Loss of SCM
B. DB-OP-02000, Section 6 - Lack of Heat Transfer
C. DB-OP-06225, Main Feedwater System Proceedure
D. DB-OP-06233, Auxiliary Feedwater Procedure

Steam binding has been discovered in Auxiliary Feedwater Pump 2.
Which ONE of the following statements explains why extreme care must be used when venting the
pump casing?

A. Possibility of high pressure steam exists.
B. Prevent spraying water on energized electrical equipment.
C. Minimize spread of contamination if the Condensate Storage Tanks are contaminated.
D. Prevent flooding of the Auxiliary Feedwater Pump room if the Auxiliary Feedwater Pump
starts.

Which ONE of the following describes steam binding in an Auxiliary Feed Pump?

A. HOT water accumulates in the steamline and eventually ends up in the TURBINE casing.
B. Hot Water accumulates in the pump casing due to shaft leakage from the turbine casing.
C. Steam fills the PUMP casing and prohibits the pump from pumping water.
D. Steam in the TURBINE casing condenses and fills the casing with water.

How is steam binding of an Auxiliary Feed Water Pump identified?

A. Observing pressure in discharge lines in the Mechanical Penetration Rooms.
B. High temperature computer alarms at the Auxiliary Feedwater Pump suctions.
C. Casing of pump is hot to the touch when placing back of hand on pump during rounds.
D. Opening the casing vent on the Auxiliary Feedwater Pump to see if hot water comes out.

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EO 1 Block 3 Aux Feedwater Flashcards

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