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.JS Sim Phase USE THIS > Week 7 & 8 > Flashcards

Week 7 & 8 Flashcards

1
Q
  • Unit at 100% power.
  • A loss of PKA-M41 occurs

Which one of the following describes the status of the Auxiliary Feedwater System?

A. Downcomer isolation valves fail and must be locally operated before AFA-P01 can be used.

B. AFA-P01 governor control power is lost and AFN-P01 has lost normal control power.

C. The Train “A” main steam supply valves fail open to ensure AFA-P01 is available for local operation.

D. The train “A” main steam supply valves fail as is but if AFA-P01 is already running it would be immediately available.

A

B. AFA-P01 governor control power is lost and AFN-P01 has lost normal control power.

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2
Q
  • Unit 1 is operating at rated power.
  • A loss of PNA-D25 occurs.

Which of the following is correct concerning PPS Channel A?

A. Only those parameters with setpoints below the normal value, LOW, have tripped, requiring the crew to bypass only those parameters.

B. All parameters in that channel have tripped due to the loss of power and must be bypassed.

C. All parameters in that channel have tripped due to the loss of power. However, since the bypass system is also without power, bypassing these parameters serves no purpose.

D. Only those parameters with setpoints below the normal value, LOW, have tripped and the crew bypasses all parameters in that channel.

A

B. All parameters in that channel have tripped due to the loss of power and must be bypassed.

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3
Q
  1. With a loss of PNC-D27, how many ADVs are OPERABLE?

A. 0

B. 1

C. 2

D. 4

A

D. 4

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4
Q
  • Unit 2 is operating at rated power.
  • The A D/G output breaker is closed with the D/G carrying 5000 KW of load paralleled to offsite power.
  • A loss of PKA-M41 occurs due to a bus fault.

Which one of the following describes the impact, if any, this has on the D/G?

A. No impact, since PNA-D25 remains energized.

B. The D/G trips, its output breaker remains closed and PBA-S03 de-energizes.

C. The D/G trips but its output breaker remains closed, causing the diesel to motorize.

D. The D/G continues to run at 5000 KW, however output breaker control has been lost.

A

C. The D/G trips but its output breaker remains closed, causing the diesel to motorize.

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5
Q
  1. Which one of the following describes how a loss of NNN-D11 effects the operation of the RPCS?

On a RPCB, CEAs will…

A. not drop, setback will not occur, runback will not occur, .

B. drop, all turbine features will not operate.

C. drop, runback will not occur, setback will occur.

D. not drop, turbine setback and runback will function.

A

A. not drop, setback will not occur, runback will not occur, .

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6
Q
  • Unit 2 is at 100% power
  • The Unit has experienced a loss of NNN-D12
  • All other systems are operating normally

Charging pump suction will automatically switch to…..

A. CH-UV-514 open and CH-UV-501 closed.

B. CH-UV-514 open and CH-UV-501 open (must be manually closed).

C. CH-HV-536 open and CH-UV-501 closed.

D. CH-HV-536 open and Ch-UV-501 open (must be manually closed).

A

A. CH-UV-514 open and CH-UV-501 closed.

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7
Q
  • Plant is at 90% power.
  • Loss of Non-Class 120VAC power to NNN-D15 occurs.

With NO operator action, which one of the following will occur?

A. RPCB initiates causing the main turbine to be setback to 60% with no runback occurring.

B. Reactor trip occurs on high RCS pressure due to a main turbine trip.

C. Reactor trip occurs on low steam generator level.

D. RPCB initiates causing turbine load to be setback and runback as necessary to balance Tavg and steam header pressure.

A

C. Reactor trip occurs on low steam generator level.

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8
Q
  1. Which one of the following describes how a loss of NNN-D12 effects the operation of the RPCS?

A. not drop, setback will occur, runback will not occur, .

B. drop, all turbine features will not operate.

C. drop, runback will not occur, setback will occur.

D. not drop, turbine setback and runback will function.

A

C. drop, runback will not occur, setback will occur.

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9
Q
  • Unit operating at 100% full power, normal lineup
  • NKN-M45, non-class 125 VDC bus, is deenergized
  • Reactor and main turbine have subsequently tripped
  • Main generator output breakers have been opened and excitation removed
  • SPTA’s are in progress

With no operator action, which one of the following describes the status of the listed electrical buses?

A. PBA-S03 and NAN-S01 are both deenergized.

B. PBB-S04 is energized by “B” DG and NAN-S02 is deenergized.

C. PBA-S03 is energized by offsite power and NAN-S01 is deenergized.

D. PBB-S04 and NAN-S02 are energized by offsite power.

A

C. PBA-S03 is energized by offsite power and NAN-S01 is deenergized.

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10
Q
  • The unit has tripped and the CRS has diagnosed a LOAF with an inadvertent SIAS.
  • The CRS directs you to start AFN-P01.
  • Tc is 565 °F
  • The SIAS load shed panels have been re-energized
  • Suction valves are open and downcomer valves are in remote-auto
  • Indicating lights for AFN-P01 are lit.

You have gone to “START” one time using its handswitch (AFN-HS-11).

AFN-P01 is…

A. running and feeding both Steam Generators.

B. running but not feeding either Steam Generator.

C. not running, AFN-P01 will start by going to “START” one more time.

D. not running, AFN-P01 can be started by going to “STOP” then “START”.

A

D. not running, AFN-P01 can be started by going to “STOP” then “START”.

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11
Q

While recovering from a loss of all feed event the following conditions exist:

  • PZR level 71% and trending up.
  • Letdown is isolated due to valve failure.
  • No RCPs are running.
  • NCW is not in service.
  • S/G levels have been restored to 50% NR by manually operating AFA-P01.

Choose which one of the following actions is correct for PZR level control in accordance with the EOPs.

A. Secure the charging pumps.

B. Commence a plant cooldown.

C. Maintain Seal Injection and allow PZR to go solid.

D. Isolate RCP seal bleedoff and secure the charging pumps.

A

B. Commence a plant cooldown.

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12
Q

Given the following conditions:

  • A sustained LOAF is in progress.
  • Both SGs are dry.
  • RCS temperature is rising.
  • A feedwater source has been restored and is available.

Which one of the following describes how the SG(s) should be fed under these conditions?

A. Feed only ONE at 500 maximum gpm.

B. Feed only ONE at 1000 gpm maximum.

C. Feed BOTH at 500 gpm maximum each.

D. Feed BOTH at 1000 gpm maximum each.

A

B. Feed only ONE at 1000 gpm maximum.

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13
Q

Given the following plant conditions:

  • A reactor trip from 100% power occurs due to an inadvertent MSIS “A”.
  • PBA-S03 is de-energized due to a bus lockout.
  • AFB-P01 is out of service to repair a pump bearing and is disassembled.
  • AFA-P01 tripped on overspeed.

The crew has completed the SPTA’s and the CRS directs entry into 40EP-9EO06, Loss Of All Feedwater.

Which one of the following operator actions should be performed first.

A. Stop all RCPs.

B. Start AFN locally at the breaker.

C. Ensure AFAS-1 and AFAS-2 are actuated.

D. Depressurize one S/G to less than condensate pump discharge pressure.

A

A. Stop all RCPs.

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14
Q

Given the following plant conditions:

  • “A” shell main condenser vacuum breaker has failed Open
  • Rx has tripped on low SG levels
  • AFA-P01 has failed due to a loss of lubricating oil.
  • AFN-P01 has a brighter than normal green light, confirmed 86 lockout and a ground fault trip.
  • PKB-M42 is de-energized due to a fault.

Which one of the following should be pursued as the primary method of restoring feedwater?

A. Local operation of AFA-P01.

B. Local operation of AFB-P01.

C. Local operation of AFN-P01.

D. Restart a Main Feed Pump.

A

B. Local operation of AFB-P01.

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15
Q

A steam generator should be “bottled up” if it is expected to take longer than _________ minutes to recover feedwater.

A. 15

B. 30

C. 45

D. 60

A

A. 15

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16
Q

Given the following plant conditions:

  • Plant has tripped from 100% power.
  • The Loss of All Feedwater procedure, 40EP-9EO06 has been entered.
  • No other events are in progress.

Which one of the following describes plant response when dryout conditions have been reached in both Steam Generators?

A. Steam Generator pressures will increase.

B. Steam Generator pressures will stabilize at the saturation pressure corresponding to RCS cold leg temperature.

C. RCS temperatures will increase.

D. RCS temperatures will decrease.

A

C. RCS temperatures will increase.

17
Q

Given the following conditions:

  • A LOAF is in progress.
  • The CRS has determined to restore feed using Condensate Pumps.
  • The Secondary Operator is directed to utilize the ADV(s) on the selected SG to establish conditions to permit feeding.

Which one of the following describes the actions that should be taken?

A. Completely depressurize the selected SG.

B. Depressurize the selected SG to about 450 psia.

C. Depressurize the selected SG to about 550 psia.

D. Depressurize the selected SG to about 750 psia.

A

B. Depressurize the selected SG to about 450 psia.

18
Q

The control room staff is implementing Standard Appendix 42 to align the Aux Feedwater Pumps suction to the Reactor Makeup Water Tank. A potential for contamination of the CST exists due to:

A. the Aux Feed Pump(s) recirculation flow remains aligned to the CST.

B. the fact that the suction piping is normally vented back to the CST.

C. a gravity flow path that would exist between the RMWT and the CST when the RMWT suction valve(s) are opened.

D. failure of the auto-closure interlock of the mini-flow valves when the Aux Feedwater pumps are aligned to both the RMWT and the CST.

A

A. the Aux Feed Pump(s) recirculation flow remains aligned to the CST.

19
Q

All of the following conditions are acceptable reasons to exit the LOAF procedure after initally entering it EXCEPT….

A. Diagnosis of the Loss of All Feedwater can not be confirmed.

B. A Loss of Offsite Power occurs concurrently with a Loss of All Feed.

C. The feedwater line break can not be isolated from the Steam Generator.

D. The STA completes the safety function status sheet and determines that all of the acceptance criteria are not met.

A

B. A Loss of Offsite Power occurs concurrently with a Loss of All Feed.

20
Q

If a total loss of feed flow has progressed to the point where steam generator dryout has occurred and the plant is not yet on SDC, core uncovery can begin in as little as ________ from the time feed is lost.

A. 10 minutes

B. 22 minutes

C. 1 hour

D. 2 hours

A

C. 1 hour

21
Q

QSPDS calculates upper head saturation margin using which of the following temperature inputs?

A. Highest Th or Tc.

B. Representative CET.

C. Highest upper head metal temperature.

D. Hottest of the top three (3) unheated junction thermocouple temperatures.

A

D. Hottest of the top three (3) unheated junction thermocouple temperatures.

.JS Sim Phase USE THIS (19 decks)

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