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Pirtle NRC PREP > Pre Test Review > Flashcards

Pre Test Review Flashcards

1
Q

What are the at power trips blocked by P7?

A

PRZ Pressure Low

PRZ Water Level High

RCS Loss of Flow

UV on RCP Busses

UF on RCP Busses

RCP Breaker Position

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2
Q

What are the inputs to OT Delta T?

A

Delta T

Tave

AFD

PRZ Press

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3
Q

What does OT Delta T Protect from?

A

DNB

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4
Q

What are the inputs for OP Delta T?

A

Delta T

Tave

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5
Q

What does OP Delta T protect from?

A

KW / Ft

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6
Q

What starts the CEQ Fans?

A

1 psi in Containment.

NOT Phase A

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7
Q

What is the function of P4?

A

+ Low Tavg = FWI

Permits manual block of auto SI Signals

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8
Q

What are the setpoints for P6 while going up in power?

A

10-10 Amps

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9
Q

What are the setpoints for P6 coming down in power?

A

6 x 10-11 amps

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10
Q

When does the SR Hi flux at SD alarm blocked clear?

A

10-10 amps

P6

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11
Q

What are the 4 functions of P10?

A

Permits manual block of:

  1. PR Hi Flux Trip, Low Setpoint
  2. IR Trip
  3. IR Rod Stop

Also is the backup de-energization of SR

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12
Q

Which rod stops are for auto and manual rod withdrawal?

A

C1

C2

C3

C4

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13
Q

How are rods affected during a PR NI failure - High?

A

Rods insert and will not withdraw bc of C2

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14
Q

What is C9?

A

1 Circ Pump Breaker Closed

CRID II

3/3 Condenser Vac >= 20.6 “Hg

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15
Q

When is AMSAC enabled?

A

2/2 Turbine Impulse Pressures >40%

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16
Q

When is the runback of the MFP enabled?

A

> 60% power

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17
Q

What is the only pressurizer level failure that will not cause a trip with no operator action?

A

Bistable fails high

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18
Q

While PRZ Heaters be protected during a cooldown?

A

No. Actual level will be less than 17% when indicated on the hot cal

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19
Q

What is the TRM Temperature for aux spray delta T?

A

320*F

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20
Q

Which pressure channel inputs into QMO-225, East CCP ELO?

A

NPP-151

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21
Q

Which pressure channel inputs into QMO-226, West CCP ELO?

A

NPP-153

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22
Q

What must be done if SDM is not within the COLR limits?

A

Borate to restore within 15 mins

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23
Q

What is QLC-451, VCT Level control primarily responsible for?

A

Makeup

Starts at 14%. Stops at 24%

Divert trips open at 87%

Has high, Low and Low low alarm. As well as MU Not in Auto

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24
Q

What is QLC-452, VCT Level control primarily responsible for?

A

Divert

Starts at 78%. Full open at 87%.

Has Low and Low Low alarm

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25
Q

The turbine trip controller maintains temperature at ______ using a maximum of _____ groups of valves.

A

547*F

2 Groups

26
Q

How many groups of valves are available for a load rejection?

A

2 groups for C7A

3 groups for C7B

27
Q

How do you know how many groups of valves are open on a turbine trip?

A

Temperature.

10*F differential = 1 group trips open

20*F differential = 2nd group trips open

28
Q

How many groups are available in steam pressure mode below 541*F?

A

1 group after going to bypass

29
Q

What is the ECCS Acceptance Criteria?

A

Peak Clad Temp < 2200*F

Max Clad Oxidation < 17%

H2 generation < 1% max

Coolable geometry

30
Q

What are the typical injection pressures and flows for the ECCS Pumps?

A

CCP 2300# 150-550 gpm

SI 1600# 400-600 gpm

RHR 200# 4500 gpm

31
Q

What are the tech specs for the accumulators?

A

Volume 921 - 971 cu ft

Pressure 585 - 658 psig

Boron 2400-2600 ppm

32
Q

What is QPTR?

A

Max of all Upper (lower) vs Average of all Upper (lower)

33
Q

What must be done if AFD is not in target band at > 90% power?

A

15 mins to restore or get below 90% in another 15 mins

34
Q

What must be done if you’re between 50-90% power and AFD is not in the target band?

A

Reduce to < 50% power in less than 30 mins

35
Q

What are the inputs to Rod Control?

A

Auctioneered High Tave

Auctioneered High PR NI

MPC-253

36
Q

How fast do rods move in auto with a 3-5*F mismatch?

A

8-72 spm

32 steps per degree + 8

37
Q

What do you do if you’re outside of the ARM?

A

1 rod out, borate to SDM in 1 hr, power to 75% in 2 hrs

> 1 rod out, borate to SDM in 1 hr or M3 in 6 hrs

38
Q

What 3 things go into determining which Mode we are in?

A

Keff

% Rated Thermal Power

RCS Tave

39
Q

What are the inputs into the Subcooling Meter?

A

Auctioneered High CETCs or WR RTD Temps

Auctioneered LO RVLIS pressure

40
Q

What must be done with reactor critical when Tave is < 539*F?

A

Immediately place R in subcritical position

41
Q

Why is 600 gpm RHR flow sent to L2&3 during a cooldown?

A

TO keep L3 subcooled during a PRZ Outsurge

42
Q

Which RHR pump supplies suction to SI Pumps on CL Recirc?

A

West

43
Q

Which RHR Pump supplies suction to the CCPs during Recirc Phase?

A

East

44
Q

What are the U1 SG Low and Low Low trips?

A

15% and 5%

45
Q

What are the U2 SG Low and Low Low Trips?

A

26% and 22%

46
Q

What are the EDG trips during a SI or LOOP?

A

Generator Phase Differential

Electronic Overspeed

Manual PB

47
Q

What is the purpose of raising load to 900-1100 KW quickly after closing the DG output breaker?

A

Prevents motoring the EDG due to no-load conditions

48
Q

What will give a Load Cons signal?

A

LOOP and SI

Or

LOOP and CTS

49
Q

Which temperature inputs into RPS?

A

NR Thot

50
Q

A load rejection at ______ presents the greater short term challenges due to ______

A

BOL

Lower MTC reactivity feedback allowing for a larger rise in Tave

51
Q

A load rejection at ______ presents the greater long term challenges due to ______

A

EOL

Xenon oscillations

52
Q

XS LD Hx design flow is ______

A

20 gpm

53
Q

If outside of the RIL (rod bank low low lit), what must be done?

A

Emergency borate

54
Q

MFP DP variable setpoint looks at _______

A

Total steam flow

55
Q

PR N42 failing low will have cause what to happen due to delta I changes?

A

Lowers OTDT Setpoint

56
Q

What do amps do on a locked rotor?

A

Rise

57
Q

What does speed do on a sheared shaft?

A

Rise

58
Q

How do you determine a new leak rate?

A

Square root of new DP / Square root of old DP x Original Leakrate

59
Q

Which SR NIs feed into the audible count rate?

A

N31 and N32

60
Q

How does the MT act with MW control IN?

A

Valves move in attempt to maintain load (may draw more steam if needed)

Pirtle NRC PREP (7 decks)

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