Why is the Loss of Coolant Accident (LOCA) sequencer prevented from starting if an undervoltage condition exists on the Safeguards Bus?
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What is the effect of a spurious "START FAILURE RELAY" actuation when the Emergency Diesel Generator is running?
Which sets of air operated valves are provided with a nitrogen accumulator as a backup supply?
Which combination of INOPERABLE monitors would prevent a CTMT Purge release?* * GT RE-22, Containment Purge Exhaust Monitor* GT RE-31, Containment Air Supply Monitor* GT RE-32, Containment Air Supply Monitor* GT RE-33, Containment Purge Exhaust Monitor
Which of the following describes the bases for the storage capacity of the fuel oil systems which supply the emergency diesel generators
Which of the following events would result in a Containment Atmosphere Radiation Monitor (GT RE-31) alarm?
What is the function of the Process and Radiation Monitoring System?
The Pressurizer is solid in Mode 5. The B Centrifugal Charging Pump is supplying charging and seal flow and B Residual Heat Removal train is in service for cooling.What is the plant response if instrument air is lost to the Auxiliary Building?
A lockout actuation occurs on Bus NB02 due to a bus fault. The normal supply breaker trips and the EDG starts and achieves rated speed and voltage, but its supply breaker does not close.After the fault is repaired, the operator can close the EDG supply breaker when the ____________________________.
The plant is operating at 100% power with no equipment out of service when an 86-2 LOR fault occurs on Bus NB02. The LOR initiates trips on the normal, alternate and diesel feeder breakers to the bus. EDG B starts and runs with its output breaker open. Assuming all Train A equipment functions as designed, which of the following actions should be performed?
The Control Room calls the Radwaste Operator and reports the Auxiliary Steam System radiation monitor FB RE-50 is in alarm.What automatic action takes place when FB RE-50 is in alarm?
What is the start and stop sequence of the Emergency Diesel Generator (EDG) Rocker Arm Lube Oil Pre-Lube Pump?
The following data was recorded while performing STS KJ-005A:Step 5.1.2 Air Pressure PI-3A 645 psig PI-3B 640 psigStep 5.1.5 Time to reach speed 11.3 seconds Frequency 60.1 Hz Voltage 3.88 kVStep 5.1.6 Air pressure PI-3A 575 psig PI-3B 595 psigStep 18.104.22.168 Time to reach load 57 secondsStep 22.214.171.124 Load 6.020 MWWas acceptance criteria satisfied?
The steam control valve to the Plant Heating System Heat Exchanger will modulate to control water temperature when which condition is satisfied?
The RO notes increased frequency of VCT makeups and performs a short STS BB-004 RCS leak rate calculation and determines leakage has increased .5 gpm since the last performance of the surveillance.What indication available in the control room would validate this finding?
What adverse condition will still allow automatic starting of an Emergency Diesel Generator?
The unit is in Mode 1 at 100% RTP. Two Required Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation loss of voltage channels on one 4Kv NB bus are declared inoperable at 0800 on 7/1.What TS Action maintains compliance for this condition?
What is the result of placing the master transfer switch on any remote station of the Supervisory System to LOCAL position?
The unit is in MODE 1 and Emergency Diesel Generator (EDG) A has been declared inoperable. What action below must be completed within one hour?
A heat trace alarm on an Outside Heat Trace Panel, is actually an indication of what?