Fire Protection Flashcards
A fire alarm due to high temperature has occurred on the Main Transformer. Water
spray on the transformer will only occur when:
A. Water pressure on a diaphragm is released, water spray is immediate through open
spray nozzles.
B. Water pressure on a diaphragm is released, water spray will not occur until fusible
link melts to initiate spray.
C. A solenoid de-energizes, and releases nitrogen pressure holding the valve closed,
water spray is immediate through open spray nozzles.
D. Air pressure in the dry-pipe sprinkler system is released, spray will be initiated when
the fire pump fills the header.
A. Water pressure on a diaphragm is released, water spray is immediate through open
spray nozzles.
All fire pumps are lined up for automatic operation. If a fire hydrant is opened for
flushing, at what pressure will Diesel Fire Pump P-41 start?
A. 108 psig
B. 98 psig
C. 78 psig
D. 68 psig.
D. 68 psig.
A fire system rupture has occurred which caused Fire Water System pressure to lower
to 63#. The rupture was then isolated. Which one of the following lists the Fire Water
Pumps that are expected to be in service? Assume no operator action occurs.
A. P-9A and P-9B only.
B. P-9A, P-9B, P-41, and P-13.
C. P-9A, P-9B, and P-13 only.
D. P-9A, P-9B, and P-41 only.
D~ P-9A, P-9B, and P-41 only.
A fire system rupture has occurred which caused Fire Water System pressure to lower
to 71#. The rupture was then isolated. Which one of the following lists the Fire Water
Pumps that are expected to be in service? Assume no operator action occurs.
A. P-9A and P-9B only.
B. P-9A, P-9B, P-41 , and P-13.
C. P-9A, P-9B, and P-13 only.
D. P-9A, P-9B, and P-41 only.
A’I P-9A and P-9B only.
• P-9A, Electric Fire Pump, is out of service
A fire system rupture then occurs which causes Fire Water System pressure to lower to
65#. The rupture is then isolated. Which one of the following lists the Fire Water
Pumps that are expected to be in service? Assume no operator action occurs.
A. P-9B and P-41 only.
B. P-9B, P-41, and P-13.
C. P-9B and P-13 only.
D. P-9B only.
B. P-9B, P-41, and P-13.
The plant is at 40% power.
No equipment is out of service.
Due to a miscommunciation, the Auxiliary Operator manually shuts off P-13 Fire
Jockey Pump.
Assuming all equipment functions per design, what is the expected impact of this
action on the Fire Protection System, and which procedure should be referred to by the
operator?
A. NO automatic action occurs. Operator refers to EK-1135, “FIRE SYSTEM
HEADER LO PRESS” for required actions.
B. NO automatic action occurs. Operator refers to SOP-21, Fire Protection System for
manually starting P-98 Diesel Fire Pump.
C. P-9A Motor Driven Fire Pump auto starts. Operator refers to EK-1134, “MOTOR
DRIVEN FIRE PUMP RUNNING” for required actions.
D. P-41 Diesel Fire Pump auto starts. Operator refers to EK-1140, “DIESEL FIRE
PUMP RUNNING” for required actions.
C’!’ P-9A Motor Driven Fire Pump auto starts. Operator refers to EK-1134, “MOTOR
DRIVEN FIRE PUMP RUNNING” for required actions.
a. Candidate incorrectly believes no pump auto starts, but P-9A will start on low
header pressure.
b. Candidate incorrectly believes no pump auto starts, but P-9A will start on low
header pressure.
c. CORRECT· Shutting off the jockey pump causes system pressure to
degrade.
d. P-9A will start at 98 psig and maintain system pressure.
Given the following:
• Plant is in mode 6 and on day 9 of the refueling outage.
• Bus 13 (LCC-13) developed an overcurrent condition and has tripped
• .A fire system rupture has occurred which caused Fire Water System pressure
to lower to 70#. The rupture was then isolated.
Which one of the following lists the Fire Water Pumps that are expected to be in
service? Assume no operator action occurs.
A. P-9A, P-9B, and P-41 only
B. P-9A and P-13 only
C. P-9A and P-9B only
D. P-9B only
D~ P-9B only
A. Incorrect: P-9A has no power and P-41 does not auto start until header pressure reaches 68#.
B. Incorrect: Bus 13 powers both P9A and P-13. Additionally, if P-9A had started with P-13 switch in auto,
P-13 would have stopped when P-9A started.
C. Incorrect: P-9A has no power to pump motor - Bus 13 deenergized.
D. Correct: P-9B is diesel driven and will auto start of fire protection header decreases to 83#.
When a HVAC duct penetrates a fire barrier, a fire-rated damper is required to be
installed.
Which of the following correctly states the purpose/function of a fire-rated damper?
A. Actuate area fire suppression system for the affected area when the damper fusible
link melts
B. Actuate a Control Room fire alarm when the damper fusible link melts
C.Maintain the integrity of the fire barrier by preventing fire propagation to other areas
D. Automatically start the Motor Driven Fire Pump (P-9A)
Cor Maintain the integrity of the fire barrier by preventing fire propagation to other areas
The plant has experienced a loss of service water. The Control Room is implementing
ONP 6.1, “Loss of Service Water”. Both P-9B and P-41 have been started and the Fire
Protection System has been crosstied to the Critical Service Water headers.
What impact will this have on the Fire Protection System?
A. P-13, fire system jockey pump, will auto start on low Fire Water Pressure.
B. Fire Protection System Pumps could be operated at shutoff head.
C. Both P-9A, motor-driven fire pump, and P-13, fire system jockey pump, will be
isolated from the Fire Protection System.
D. Fire Protection System Pumps could be operated in a runout condition.
D. Fire Protection System Pumps could be operated in a runout condition.
A. Incorrect: P-13 will trip when P-9A auto starts at 98 psig.
B. Incorrect: The service water header loads effectively double the loading on the fire pumps. Shutoff
head would only be indicated if the pumps were isolated from the headers or loads.
C. Incorrect: The service water and fire water cross-tie does not isolate P-13 or P-9A from the Fire
Protection header.
D. Incorrect: The maximum capacity of the fire protection pumps is 6750 gpm at 107 psig. With fire
protection system crosstied to service water, the service water loading exceeds this max capacity causing
pumps to potentially reach runout conditions at 60 psig.
A fire system rupture has occurred which caused Fire Water System pressure to lower
to 63#. The rupture was then isolated. Which one of the following lists the Fire Water
Pumps that are expected to be in service? Assume no operator action occurs.
A. P-9A and P-9B only.
B. P-9A, P-9B, P-41, and P-13.
C. P-9A, P-9B, and P-13 only.
D. P-9A, P-9B, and P-41 only.
D~ P-9A, P-9B, and P-41 only.
a. INCORRECT - P-41 starts at 68# header pressure. Plausible if the student believes that P-41 starts combined.
d. CORRECT - Per SOP-21, step 7.1.1.b, P-13 automatically stops per step 7.2.1 note
Control Room alarm “MOTOR DRIVEN FIRE PUMP P-9A CONTROL CKT
UNDERVOL TAGE” (EK-1133) has annunciated.
Which one of the following describes the expected status of P-9A indicating lights
RED LIGHT GREEN light
A. ON OFF
B. OFF ON
C. OFF OFF
D. ON ON
C. OFF OFF
Control Room alarm “FIRE SYSTEM PANEL C-47, C-47A/B OFF NORMAL” (EK-1148)
has annunciated. The cause of the alarm is “CORRIDOR 106 on EL. 590’-0” (Outside
Charging Pump rooms) on panel C-47B. Which one of the following describes the
required action for this alarm per the Alarm Response Procedure?
A. Immediately sound the fire alarm and call out Palisades Fire Brigade.
B. Immediately sound the fire alarm and call Covert Township Fire Department.
C. Dispatch an Auxiliary Operator to inspect the area. If a fire is discovered, then
sound Fire Alarm and call out Palisades Fire Brigade.
D. Immediately sound fire alarm. Dispatch an Auxiliary Operator to inspect the area. If
fire is present, call out Palisades Fire Brigade.
A. Immediately sound the fire alarm and call out Palisades Fire Brigade.
All of the following Fire Alarms on Panel C-47B require IMMEDIATE sounding of the
Fire Alarm and call out of the Fire Brigade EXCEPT:
A. Charging Pump Areas
B. Corridor 106 on Elev. 590’
C. Remote Shutdown Panel & Stairwell
D. Injection & Spray Pumps
D. Injection & Spray Pumps
All of the following Fire Alarms on Panel C-478 require IMMEDIATE sounding of the
Fire Alarm and call out of the Fire Brigade EXCEPT:
A. Charging Pump Areas
B. Corridor 106 on Elev. 590’
C. Remote Shutdown Panel & Stairwell
D. Safeguards Area, Injection & Spray Pump
D. Safeguards Area, Injection & Spray Pump
Control Room alarm “FIRE SYSTEM PANEL C-47, C-47A/B OFF NORMAL” (EK-1148) has
annunciated. The cause of the alarm is “CORRIDOR 106 on EL. 590’-0” (Auxiliary Building
Main Corridors on panel C-47B). Which one of the following describes the required action for
this alarm?
A. Immediately sound the fire alarm and call out Palisades Fire Brigade.
B. Immediately sound the fire alarm and call Covert Township Fire Department.
C. Dispatch an Auxiliary Operator to inspect the area. If a fire is discovered, then sound Fire
Alarm and call out Palisades Fire Brigade.
D. Immediately sound fire alarm. Dispatch an Auxiliary Operator to inspect the area. If fire is
present, call out Palisades Fire Brigade
A”! Immediately sound the fire alarm and call out Palisades Fire Brigade.
a. CORRECT
b. INCORRECT - Plausible if the student believes that calling Covert fire department is a conservative action.
c. INCORRECT - Plausible if the student believes this is the correct action for this alarm. This is the correct
action for any other alarm not listed for EK-1148.
d. INCORRECT - Plausible for the same reason as ‘c’ but student correctly identifies that the fire alarm needs to
be sounded.