BOP-ESFAS Flashcards
Unit 1 is at 100% power with all systems in a normal lineup.
RU-31, Spent Fuel Pool Area Monitor, has a detector failure causing a HIGH alarm.
All equipment actuates as designed.
The CO places RU-31 in BYPASS at the BOP-ESFAS cabinet.
Which of the following describes the state of the BOP-ESFAS actuations?
A. ‘A’ and ‘B’ FBEVAS only actuated on the trip. ‘A’ FBEVAS is now clear. ‘B’ FBEVAS must be reset by pressing the ACTUATE-MAN-RST button.
B. ‘A’ and ‘B’ FBEVAS only actuated on the trip. ‘A’ and ‘B’ FBEVAS are now cleared.
C. ‘A’ and ‘B’ FBEVAS and ‘A’ and ‘B’ CREFAS actuated on the trip. ‘A’ and ‘B’ FBEVAS are now clear. ‘A’ and ‘B’ CREFAS must be reset by pressing their ACTUATE-MAN-RST buttons.
D. ‘A’ and ‘B’ FBEVAS and ‘A’ and ‘B’ CREFAS actuated on the trip. All four actuations are now cleared.
D
Unit 1 is at 100% power with all systems in a normal lineup.
RU-145, Fuel Building Exhaust Monitor, has been placed in BYPASS at the ‘B’ BOP-ESFAS cabinet.
RU-31, Spent Fuel Pool Area Monitor, has a detector failure that causes a HIGH alarm.
Which of the following BOP-ESFAS actuations will occur?
A. ‘A’ FBEVAS only
B. ‘A’ and ‘B’ FBEVAS only
C. ‘A’ FBEVAS, ‘A’ and ‘B’ CREFAS only
D. ‘A’ and ‘B’ FBEVAS, and ‘A’ and ‘B’ CREFAS.
D
Unit 1 is at 100% power with all systems in a normal lineup.
RU-145, Fuel Building Exhaust Monitor, has been placed in BYPASS at the ‘B’ BOP-ESFAS cabinet.
The CO places ‘A’ FBEVAS manual initiation switch on B05 to FBEVAS INITIATE and releases it.
Which of the following BOP-ESFAS actuations will occur?
A. ‘A’ FBEVAS only
B. ‘A’ and ‘B’ FBEVAS only
C. ‘A’ FBEVAS, ‘A’ and ‘B’ CREFAS only
D. ‘A’ and ‘B’ FBEVAS, and ‘A’ and ‘B’ CREFAS.
A
Unit 1 is at 100% power with all systems in a normal lineup.
RU-31, Spent Fuel Pool Area Monitor has a HIGH alarm.
What lights are illuminated on the FBEVAS and CREFAS modules?
‘A’ FBEVAS: TRIP and ACTUATE
‘B’ FBEVAS: ACTUATE
‘A’ CREFAS: ACTUATE
‘B’ CREFAS: ACTUATE
Unit 1 is at 100% power with all systems in a normal lineup.
RU-31, Spent Fuel Pool Area Monitor has a HIGH alarm.
The HIGH alarm clears.
What lights are illuminated on the FBEVAS and CREFAS modules?
‘A’ FBEVAS: TRIP, RESET, and ACTUATE
‘B’ FBEVAS: ACTUATE
‘A’ CREFAS: ACTUATE
‘B’ CREFAS: ACTUATE
Unit 1 is at 100% power with all systems in a normal lineup.
RU-31, Spent Fuel Pool Area Monitor has a HIGH alarm.
The CO places RU-31 to BYPASS on ‘A’ BOP-ESFAS.
What lights are illuminated on the FBEVAS and CREFAS modules?
‘A’ FBEVAS: TRIP and BYPASS
‘B’ FBEVAS: None
‘A’ CREFAS: None
‘B’ CREFAS: None
Unit 1 is at 100% power with all systems in a normal lineup.
The CO places ‘A’ FBEVAS initiation switch at B05 to INITIATE, then releases the switch.
What lights are illuminated on the FBEVAS and CREFAS modules?
‘A’ FBEVAS: ACTUATE, MAN, and RST
‘B’ FBEVAS: None
‘A’ CREFAS: None
‘B’ CREFAS: None
Unit 1 is at 100% power with all systems in a normal lineup.
The CO presses the TEST pushbutton on the ‘A’ FBEVAS module once.
What lights are illuminated on the FBEVAS and CREFAS modules?
‘A’ FBEVAS: TRIP, TEST, and ACTUATE
‘B’ FBEVAS: ACTUATE
‘A’ CREFAS: ACTUATE
‘B’ CREFAS: ACTUATE
Unit 1 is at 100% power with all systems in a normal lineup.
RU-30, Control Room Air Intake Monitor, has been placed in BYPASS at the ‘B’ BOP-ESFAS cabinet.
RU-37, Containment Refueling Purge Monitor, has a detector failure that causes a HIGH alarm.
Which of the following BOP-ESFAS actuations will occur?
A. ‘A’ CPIAS only
B. ‘A’ and ‘B’ CPIAS only
C. ‘A’ CPIAS, ‘A’ and ‘B’ CREFAS only
D. ‘A’ and ‘B’ CPIAS, and ‘A’ and ‘B’ CREFAS.
D
Unit 1 is at 100% with all systems in a normal lineup.
Fuse failures cause an inadvertent actuation of ‘A’ CSAS.
The RO secures the ‘A’ CS pump by placing its switch to STOP.
Afterward, NBN-X03 faults. All equipment operates as designed.
Which of the following describes the status of the ‘A’ CS pump?
A. Running
B. Stopped
C. Stopped and anti-pumped
D. Stopped and in override
A
Unit 1 is at 100% power with all systems in a normal lineup.
RU-145, Fuel Building Exhaust Monitor, has been placed in BYPASS at the ‘B’ BOP-ESFAS cabinet.
RU-31, Spent Fuel Pool Area Monitor, has a detector failure that causes output to fail low.
The CO places RU-31 in BYPASS at the ‘A’ BOP-ESFAS cabinet.
What is the expected system response?
A. RU-31 will be in BYPASS, and RU-145 will come out of BYPASS.
B. RU-31 will not go into BYPASS. RU-145 will remain in BYPASS.
C. RU-31 will not go into BYPASS. RU-145 will come out of BYPASS.
D. RU-31 will be in BYPASS. RU-145 will remain in BYPASS.
C
Unit 3 is at 100% power with all systems in a normal lineup.
Which of the following BOP-ESFAS actuations will not cause its sequencer to change modes?
A. CREFAS
B. CPIAS
C. FBEVAS
D. CRVIAS
B
Unit 1 is at 100% power with all systems in a normal lineup.
Train ‘B’ LOP/LS UV-1 has been placed in BYPASS at the ‘B’ BOP-ESFAS cabinet.
Train ‘B’ relay 727-4 fails and trips.
The CO places LOP/LS UV-4 in BYPASS at the ‘B’ BOP-ESFAS cabinet.
What is the expected system response?
A. UV-4 will be in BYPASS, and UV-1 will come out of BYPASS.
B. UV-4 will not go into BYPASS. UV-1 will remain in BYPASS.
C. UV-4 will not go into BYPASS. UV-1 will come out of BYPASS.
D. UV-4 will be in BYPASS. UV-1 will remain in BYPASS.
D
Unit 1 is at 100% power with all systems in a normal lineup.
The CO notes the STALL OPP TRAIN light is on at ‘A’ BOP-ESFAS cabinet while preparing to perform the weekly auto-test.
Subsequently, Startup Transformer NAN-X03 trips on sudden pressure.
With no operator action, ‘B’ Diesel Generator is ___(1)___, and PBB-S04 is ___(2)___.
A. (1) not running; (2) de-energized
B. (1) not running; (2) energized
C. (1) running; (2) de-energized
D. (1) running; (2) energized
B
Unit 2 is at 100% power with all systems in a normal lineup.
The CO notes the STALL OPP TRAIN light is on at ‘A’ BOP-ESFAS cabinet while preparing to perform the weekly auto-test.
Subsequently, Startup Transformer NAN-X03 trips on sudden pressure.
With no operator action, ‘B’ Diesel Generator is ___(1)___, and PBB-S04 is ___(2)___.
A. (1) not running; (2) de-energized
B. (1) not running; (2) energized
C. (1) running; (2) de-energized
D. (1) running; (2) energized
C
