EO2 Block 3 SFP Flashcards
Which ONE of the following systems is capable of removing decay heat from off-loaded fuel, purification of the Borated Water Storage Tank, AND purification of the Reactor Coolant System during a shutdown condition?
A. Makeup and Purification System
B. High Pressure Injection System
C. Component Cooling Water System
D. Spent Fuel Pool Cooling System
D
Which ONE of the following is the MINIMUM water level above the top of a seated spent fuel assembly that is PHYSICALLY possible in the Spent Fuel Pool following an external pipe rupture?
A. 6 feet
B. 9 feet
C. 15 feet
D. 23 feet
B
The reason that Spent Fuel Pool Pumps are NOT to be operated when cooling the Spent Fuel Pool with a Decay Heat Removal Pump is to prevent ___ .
A. cavitation of the running Spent Fuel Pool Pump
B. pumping the Reactor Coolant System to the Spent Fuel Pool
C. operating the Decay Heat Removal Pump in a run out condition
D. pumping the Spent Fuel Pool to the Borated Water Storage Tank
A
The following plant conditions exist:
- Plant is at 90% power
- Spent Fuel Pool Level ANNUN (3-1-B) is in alarm@ 23.6’ and steady
- MISC WST Drain Tank Level ANNUN (7-3-D) is in alarm@ 9.5’ and Increasing
Which ONE of the following could cause this condition to exist?
A. Spent Fuel Pool Level Bubbler air supply lost.
B. Spent Fuel Pool Dem in Water fill valve left open AFTER fill.
C. Spent Fuel Pool demineralizer relief valve (1620) LIFTING.
D. Borated Water Storage Tank Recirc. Pump TRIP due to Low pressure.
B
Which ONE of the following conditions will cause the Borated Water Recirculation Pump(P57) to TRIP?
A. HIGH Borated Wat.er Heat. Exchanger outlet wat.er temperature.
B. HIGH Borated Wat.er Heat. Exchanger recirc pump discharge pressure.
C. LOW Borated Water Heat Exchanger outlet water pressure.
D. LOW Borated Wat.er Heat. Exchanger recirc pump suction temperature.
C
Which ONE of the following Spent Fuel Pool Cooling System conditions will cause a Spent Fuel Pool annunciator to alarm in the Control Room?
A. Spent Fuel Pool heat exchanger outlet flow LOW
B. Spent Fuel Pool heat exchanger outlet flow HIGH
C. Spent Fuel Pool coolers Component Cooling Water flow LOW
D. Spent Fuel Pool coolers Component Cooling Water flow HIGH
A
Which ONE of the following is NOT a Control Room panel-mounted indicator for the Spent Fuel Pool and/or its cooling system components?
A. SFP level
B. SFP pump discharge flow
C. SFP temperature
D. SFP pump motor overload
B
During power operations, which ONE of the following Spent Fuel Pool Cooling System conditions will cause an SFP annunciator to alarm in the Control Room?
A. SFP heat exchanger outlet flow LOW
B. SFP coolers CCW flow HIGH
C. Refueling canal level LOW
D. SFP heat exchanger outlet flow HIGH
A
While performing a radioactive effluent release as the Primary Equipment Operator you hear a loud explosion.
It is reported over the Gai-Tronics that an unisolable leak has developed in the suction piping for the Spent Fuel Pool pumps.
Which of the following is correct?
A. As long as no fuel movement is in progress, no Technical Specifications limiting condition for operation will be violated.
B. Tech. Spec. design features have accounted for this occurrence and Spent Fuel Pool level should not decrease below 23 ft. indicated level.
C. Spent Fuel Pool Cooling must be restored before Spent Fuel Pool temperature increases above 140F or the plant must be placed in MODE 5 within the next 36 hours.
D. Although the Tech Spec for Spent Fuel Pool Water Level will be violated, the level in the Pool should not decrease below 9 ft. indicated level.
D
Which ONE of the following is the MINIMUM water level above the top of a seated spent fuel assembly that is PHYSICALLY possible in the Spent Fuel Pool following an external pipe rupture?
A. 6 feet
B. 9 feet
C. 15 feet
D. 23 feet
B
K-eff is maintained less than 0.95 in the Spent Fuel Pool by maintaining __ .
A. a minimum of 23 feet of water over the top of the irradiated fuel
B. a minimum boron concentration of 1600 ppm in the Spent Fuel Pool water
C. a maximum of 155 degrees F water temperature under abnormal heat load conditions
D. the use of boral panels and placement of the assemblies within the Spent Fuel Pool
D
During 100% Power Plant operations, Annunciator 3-4-C, “BWST RECIRC HX FLOW LO” comes into alarm. Which ONE of the following is a likely cause of this alarm?
A. Borated Wat.er Storage Tank Heat Exchanger outlet pressure RISING resulting in a Borated Water storage Tank recirculation pump TRIP.
B. Borated Wat.er Storage Tank recirculation pump stator temperature RISING resulting in a Borated Wat.er Storage Tank recirculation pump TRIP.
C. Borated Wat.er Storage Tank temperature LOWERING resulting in AUTOMATIC closure of Borated Water Storage Tank recirculation pump suction valve BW 2688.
D. Borated Wat.er Storage Tank level LOWERING resulting in AUTOMATIC closure of Borated Water storage Tank recirculation pump suction valve BW 2688.
B
You have just completed placing the second Spent Fuel Pool Heat Exchanger in service at the Primary Reactor Operators request.
The Control Room contacts you on your radio and informs you that due to operator error in refilling #3 CCW pump, the CCW surge tank level has dropped to 43 inches but is now stable.
Which statement is correct concerning plant status.
A. The CCW Surge Tank level drop is due to improper venting of Spent Fuel Cooling Pumps.
B. Since both Spent Fuel Pool Heat Exchangers are in service, adequate cooling exists for the current conditions.
C. The CCW surge tank must be refilled in order to restore normal cooling to the Spent Fuel Pool Heat Exchangers.
D. Although #1 CCW pump has AUTOMATICALLY tripped due to surge tank low level, #2 CCW pump will still be able to supply cooling water to the Spent Fuel Pool Heat Exchangers.
C
You are involved with transferring fuel to the fuel transfer pit from Containment;
You overhear a comment from a Chemistry Technician pertaining to the Spent Fuel Pool boron concentration being significantly lower than the Refueling Canal boron concentration.
You should:
A. Request that the Chemistry Technician report this to the Control Room while you continue with your activities.
B. Contact the Fuel Handling Director yourself since this condition could cause a reactivity change in the reactor core.
C. Continue transferring fuel, no transfer of water between the Spent Fuel Pool and Containment will occur.
D. Immediately initiate action to add demin water to the Refueling Canal to remedy the situation.
B
