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LOIT Questions > PPS > Flashcards

PPS Flashcards

1
Q

Unit 1 is at 100% power with all systems in a normal lineup.
PNA-D25 develops a ground and de-energizes.
What is the status of the RTCBs?
A. All four are closed.
B. RTCB ‘A’ is open, the others are closed.
C. RTCB ‘A’ and ‘C’ are open, the others are closed.
D. All four are open.

A

C

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2
Q

Unit 1 is at 100% power with all systems in a normal lineup.
PKC-M43 develops a ground and de-energizes.
What is the status of the RTCBs?
A. All four are closed.
B. RTCB ‘C’ is open, the others are closed.
C. RTCB ‘A’ and ‘C’ are open, the others are closed.
D. All four are open.

A

C

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3
Q

Unit 3 is at 100% power with all systems in a normal lineup.
PKC-M43 develops a ground and de-energizes.
What is the status of the RTCBs?
A. All four are closed.
B. RTCB ‘C’ is open, the others are closed.
C. RTCB ‘A’ and ‘C’ are open, the others are closed.
D. All four are open.

A

B

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4
Q

Unit 2 is at 100% power with all systems in a normal lineup.
RCB-PT-199B, SPS Pressurizer Pressure Transmitter, fails high.
What is the status of the RTCBs?
A. All four are closed.
B. RTCB ‘B’ is open, the others are closed.
C. RTCB ‘B’ and ‘D’ are open, the others are closed.
D. All four are open.

A

B

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5
Q

Unit 2 is at 100% power with all systems in a normal lineup.
RCB-PT-101B, Narrow Range Pressurizer Pressure Transmitter, fails high.
What is the status of the RTCBs?
A. All four are closed.
B. RTCB ‘B’ is open, the others are closed.
C. RTCB ‘B’ and ‘D’ are open, the others are closed.
D. All four are open.

A

A

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6
Q

Unit 3 is at 100% power with all systems in a normal lineup.
RCB-PT-101B, Narrow Range Pressurizer Pressure Transmitter, fails high.
What actions are required (if any) per Tech Specs?
A. No actions are required, as reactor trip coincidence is still available.
B. Immediately bypass Hi Pzr Press on Channel B.
C. Bypass Hi Pzr Press on Channel B within one hour.
D. Bypass Hi Pzr Press, Hi LPD, and Lo DNBR on Channel B within one hour.

A

D

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7
Q 
Unit 1 is at 100% power with all systems in a normal lineup.
RCC-PT-101C, Narrow Range Pressurizer Pressure Transmitter, fails low.
Consider the following Tech Specs:
1.  LCO 3.3.1 condition A
2.  LCO 3.3.1 condition C
3.  LCO 3.3.5 condition A
4.  LCO 3.3.5 condition C
Which action statement(s) currently apply?
A.  1 only
B.  1 and 2 only
C.  1 and 3 only
D.  1, 2, 3, and 4
A

A

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8
Q 
Unit 1 is at 100% power with all systems in a normal lineup.
RCC-PT-102C, Wide Range Pressurizer Pressure Transmitter, fails high.
Consider the following Tech Specs:
1.  LCO 3.3.1 condition A
2.  LCO 3.3.1 condition C
3.  LCO 3.3.5 condition A
4.  LCO 3.3.5 condition C
Which action statement(s) currently apply?
A.  1 and 2 only
B.  1 and 3 only
C.  1, 3, and 4 only
D.  1, 2, 3, and 4
A

C

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9
Q

Unit 2 is at 100% power with all systems in a normal lineup.
RCD-PT-102D. Wide Range Pressurizer Pressure Transmitter, fails low.
The CO bypasses Lo Pzr Press on PPS ‘D’.
Subsequently, RCA-PT-102A, Wide Range Pressurizer Pressure Transmitter, fails low.
Based on these conditions, SIAS has ___(1)___, and the Reactor Trip First Hit light for Lo Pzr Press is ___(2)___.
A. (1) actuated, (2) on
B. (1) actuated, (2) off
C. (1) not actuated, (2) on
D. (1) not actuated, (2) off

A

C

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10
Q

Unit 1 is at 100% power with all systems in a normal lineup.
RCD-PT-102D. Wide Range Pressurizer Pressure Transmitter, fails low.
The CO bypasses Lo Pzr Press on PPS ‘D’.
Subsequently, RCA-PT-102A, Wide Range Pressurizer Pressure Transmitter, fails high.
The CO presses the BYPASS switch for Lo Pzr Press on PPS ‘A’.
Based on these conditions, PPS ‘A’ Lo Pzr Press is ___(1)___, and PPS ‘D’ Lo Pzr Press is ___(2)___.
A. (1) bypassed, (2) bypassed
B. (1) bypassed, (2) not bypassed
C. (1) not bypassed, (2) bypassed
D. (1) not bypassed, (2) not bypassed

A

B

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11
Q

Unit 3 is at 100% power with all systems in a normal lineup.
RCB-PT-102B. Wide Range Pressurizer Pressure Transmitter, fails low.
The CO bypasses Lo Pzr Press on PPS ‘B’.
Subsequently, RCA-PT-102C, Wide Range Pressurizer Pressure Transmitter, fails high.
The CO presses the BYPASS switch for Lo Pzr Press on PPS ‘C’.
Based on these conditions, PPS ‘B’ Lo Pzr Press is ___(1)___, and PPS ‘C’ Lo Pzr Press is ___(2)___.
A. (1) bypassed, (2) bypassed
B. (1) bypassed, (2) not bypassed
C. (1) not bypassed, (2) bypassed
D. (1) not bypassed, (2) not bypassed

A

B

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12
Q

Unit 2 is at 100% power with all systems in a normal lineup.
A steam break causes containment pressure to rise to 5 psig.
Which actuations were generated by PPS directly from containment pressure?

A

Reactor Trip, SIAS, CIAS, MSIS

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13
Q

Unit 3 is at 100% power with all systems in a normal lineup.
A main steam line break occurs in the MSSS upstream of MSIV 181.
The RO notes the following parameters:
SG #1 level 50% WR and stable (and was never lower)
SG #2 level 26% WR and lowering.
SG #1 pressure 700 psia and lowering.
SG #2 pressure 300 psia and lowering.
As SG #2 level continues to lower, AFAS-2 ___(1)___, and SG #2 auxiliary feed pump discharge valves will ___(2)___.
A. (1) will actuate, (2) open
B. (1) will actuate, (2) stay closed
C. (1) will not actuate, (2) open
D. (1) will not actuate, (2) stay closed

A

D

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14
Q

Unit 2 is at 100% power with all systems in a normal lineup.
After replacing a light bulb in the ‘A’ Aux Relay Cabinet, the CO inadvertently depresses the TRIP pushbutton for Leg 1-3 of SIAS.
What is the expected plant response?
A. No actuations will occur. The leg trip will reset as soon as the button is released.
B. No actuations will occur, The leg trip will reset as soon as the Leg 1-3 RESET pushbutton is depressed.
C. SIAS ‘A’ components driven by Leg 1-3 will actuate. The leg trip will reset as soon as the button is released.
D. SIAS ‘A’ components driven by Leg 1.3 will actuate. The leg trip will reset as soon as the Leg 1-3 RESET pushbutton is depressed.

A

A

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15
Q

Unit 3 is at 100% power with all systems in a normal lineup.
The power supply fuse blows for ‘A’ SIAS Leg 1-3, causing a Leg 1-3 SIAS A alarm on B05. What is the expected plant response?
A. No actuations will occur. The leg trip will reset as soon as the fuse is replaced.
B. No actuations will occur, The leg trip will reset as soon as the Leg 1-3 RESET pushbutton is depressed.
C. SIAS ‘A’ components driven by Leg 1-3 will actuate. The leg trip will reset as soon as the fuse is replaced.
D. SIAS ‘A’ components driven by Leg 1.3 will actuate. The leg trip will reset as soon as the Leg 1-3 RESET pushbutton is depressed.

A

C

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16
Q 
Which of the following RPS trips is not specifically credited to maintain a safety limit during an anticipated operational occurrence?
A.  RWT Lo-Lo Level
B.  Steam Generator High Level
C.  Steam Generator Low Pressure
D.  High Pressurizer Pressure
A

B

17
Q 
The Pressurizer Pressure - High RPS trip provides protection against overpressurization of the reactor coolant pressure boundary during which of the following events?
A.  Main Steam System Pipe Break
B.  Loss of Condenser Vacuum
C.  Main Feed Pump Trip
D.  Reactor Coolant Pump Degradation
A

B

18
Q 
The Local Power Density - High RPS trip provides protection against fuel centerline melting due to the occurrence of excessive local power density peaks during which of the following anticipated operational occurences?
A.  Increase in Feedwater Flow
B.  Loss of Condenser Vacuum
C.  Main Turbine Trip
D.  Loss of Coolant Accident
A

A

19
Q

Unit 1 is at 100% power with all systems in a normal lineup.
Which of the following statements is true concerning the Logarithmic Power RPS trip?
A. The trip must be manually taken out of bypass at 1x10-4% power.
B. The trip will be automatically taken out of bypass at 1x10-4% power.
C. The reactor will automatically trip as soon as power lowers to 1x10-2% power.
D. The trip will be bypassed as soon as power lowers to 1x10-2% power.

A

B

20
Q

Unit 3 is at 100% power with all systems in a normal lineup.
Channel C Log Power fails low (failure is in the detector) and is declared inoperable.
Which of the following Tech Spec actions are applicable?
1. LCO 3.3.1 A for Log Power
2. LCO 3.3.1 A for DNBR & LPD
3. LCO 3.3.1 A for VOPT
4. LCO 3.3.1 C for Log Power
5. LCO 3.3.1 C for DNBR & LPD
6. LCO 3.3.1 C for VOPT

A
  1. Not applicable in Mode 1 (CR would create a tracking entry)
  2. Applicable
  3. Applicable
  4. Not applicable in Mode 1 (CR would create a tracking entry)
  5. Applicable
  6. Automatic bypass removal does not exist for VOPT
21
Q

Unit 2 is at 100% power with all systems in a normal lineup.
After replacing a light bulb in the ‘A’ Aux Relay Cabinet, the CO decides nuclear power is not his calling and depresses the TRIP pushbutton for Leg 2-4 of SIAS ‘A’. After releasing the pushbutton, he depresses the TRIP pushbutton for Leg 1-3 of SIAS ‘A’ and releases it. What is the expected plant response?
A. All SIAS ‘A’ actuations occur. The actuation will reset as soon as the buttons are released.
B. All SIAS ‘A’ actuations occur, The actuation will reset as soon as the Leg 1-3 RESET pushbutton is depressed.
C. No actuations will occur. The leg trips reset as soon as the buttons were released.
D. No actuations will occur. The leg trips will reset as soon as the Leg 1-3 RESET and Leg 2-4 RESET pushbuttons are depressed.

A

C

22
Q

Unit 1 is at 100% power with all systems in a normal lineup.
The CO desires to actuate ‘A’ RAS from the ‘A’ Aux Relay Cabinet to support a surveillance test.
In order to initiate the RAS, the CO must ___(1)___ depress both TRIP pushbuttons. In order to reset the RAS, the CO ___(2)___.
A. (1) sequentially or simultaneously; (2) must simultaneously depress both RESET buttons.
B. (1) sequentially or simultaneously; (2) may depress either RESET button.
C. (1) simultaneously; (2) must simultaneously depress both RESET buttons.
D. (1) simultaneously; (2) may depress either RESET button.

A

D

23
Q

Unit 2 is at 100% power with all systems in a normal lineup.
The CO places the SIAS initiate switches for channels A and C to SIAS INITIATE and releases the switches.
The CO then presses the FLASHER RESET pushbutton for the B05 annunciators.
What is the expected plant response?
A. Full ‘A’ and ‘B’ SIAS actuation.
B. Full ‘A’ SIAS actuation ONLY.
C. No component actuation. SIAS A Leg 1-3 alarm is locked in (light on solid).
D. No component actuation. SIAS A Leg 1-3 alarm is clear (slow flashing).

A

C

24
Q 
What are the power supplies to the matrix logic for channel AC?
A.  PNA and PNB
B.  PNA and PNC
C.  PNC and PNB
D.  PNC and PND
A

A

25
Q 
What are the power supplies to the matrix logic for channel BC?
A.  PNA and PNB
B.  PNB and PNC
C.  PNC and PND
D.  PNB and PND
A

B

26
Q 
There are \_\_\_(1)\_\_\_ channels of RPS matrix logic and \_\_\_(2)\_\_\_ channels of RPS initiation logic.
A.  (1) four; (2) four
B.  (1) six; (2) four
C.  (1) four; (2) six
D.  (1) six; (2) six
A

B

27
Q 
Operating bypass can be automatically removed from ALL of the following trips EXCEPT:
A.  High LPD
B.  High Log Power
C.  Low SG Pressure
D.  Low Pressurizer Pressure
A

C

28
Q 
Which of the following ESFAS actuations can be initiated from the Remote Shutdown Panel?
A.  SIAS
B.  AFAS
C.  MSIS
D.  CSAS
A

C

29
Q

Unit 1 is at 100% power with all systems in a normal lineup.
RTCBs ‘A’ and ‘C’ were repaired during the most recent outage. System Engineering determines an unqualified part was used in the repairs, and both RTCBs are inoperable.
What is the required action?
A. Open either RTCB ‘A’ or ‘C’ within one hour.
B. Open both RTCB ‘A’ and ‘C’ within one hour.
C. Open either RTCB ‘A’ or ‘C’ immediately.
D. Open both RTCB ‘A’ and ‘C’ immediately.

A

D

30
Q

Pressing the Lo PZR Press Setpoint Reset pushbutton will reduce the low PZR pressure setpoint to:
A. 400 psia less than current PZR pressure
B. 400 psia less than current low PZR pressure setpoint.
C. 200 psia less than current PZR pressure
D. 200 psia less than current low PZR pressure setpoint.

A

A

31
Q

Pressing the Lo SG Press Setpoint Reset pushbutton will reduce the low SG pressure setpoints to:
A. 200 psia less than current SG pressures
B. 200 psia less than current low SG pressures setpoint.
C. 100 psia less than current SG pressures
D. 100 psia less than current low SG pressures setpoint.

A

A

32
Q

Unit 3 tripped from 50% power. The turbine failed to trip, driving steam generator pressure low and causing an MSIS.
During the SPTAs, steam generator pressures recover to 1170 psia.
After completing the SPTAs and entering the Reactor Trip procedure, the CRS directs the CO to reset the MSIS. How will this be accomplished?

A

Unlock and depress MSIS initiation reset buttons on all four PPS cabinets, then depress either of the two MSIS reset buttons on both ‘A’ and ‘B’ Aux Relay Cabinets.

33
Q

Unit 3 was manually tripped from 50% power when the only running main feed pump tripped.
During the SPTAs, AFAS-1 and AFAS-2 initiated before the CO could establish feed.
The CO overrides AFAS and recovers SG levels to 45% NR using Aux Feed Pump B.
After completing the SPTAs and entering the Reactor Trip procedure, the CRS directs the CO to reset AFAS. How will this be accomplished?

A

Depress either of the two EFAS-1 reset buttons on both ‘A’ and ‘B’ Aux Relay Cabinets.
Depress either of the two EFAS-2 reset buttons on both ‘A’ and ‘B’ Aux Relay Cabinets.

34
Q

Unit 1 tripped on High Steam Generator Level.
All parameters that can cause a reactor trip have stabilized at normal values and are no longer providing trip signals. Operational Bypasses have been inserted for all CPC channels.
The CO unlocks and depresses the initiation reset pushbutton for RPS on PPS channel ‘A’. What is the expected plant response?
A. Nothing will happen until the remaining three channels have been reset. Afterward, the RTCBs must be closed locally.
B. Nothing will happen until the remaining three channels have been reset. Afterward, the RTCBs will automatically close.
C. The ‘A’ RTCB will close.
D. The ‘A’ and ‘C’ RTCBs will close.

A

C

35
Q

Unit 3 is at 100% power with all systems in a normal lineup.
The CO places the SIAS initiate switches for channels A and D to SIAS INITIATE and releases the switches.
The CO then presses the FLASHER RESET pushbutton for the B05 annunciators.
What is the expected plant response?
A. Full ‘A’ and ‘B’ SIAS actuation.
B. Full ‘A’ SIAS actuation ONLY.
C. No component actuation. SIAS A Leg 1-3 alarm is locked in (light on solid).
D. No component actuation. SIAS A Leg 1-3 alarm is clear (slow flashing).

A

A

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