20 Random Questions, RO only, all Exam Years
#1. While operating at 100% power on both Units you receive the following annunciators: Instrument air header pressure reads 50 psig. Which one of the following describes the expected position of the listed Unit 1 valves? (without operator action)
#2. Unit 1 is at full power performing LOS-DG-M3; 1B Diesel Generator Idle Start Surveillance. The ‘INCOMING Division III VOLTS’ meter is reading 121 Volts AC. The ‘RUNNING BOP/Division III VOLTS’ meter is reading 120 Volts AC. Which of the following describes the indications immediately after ACB 1433; 1B DG Feed to Bus 143; is closed?
#3. 135Y-2 has tripped. Which of the following valves are affected?
#4. Unit 1 has scrammed from rated conditions. 5 Control rods failed to fully insert. Reactor power is less than 3%. You are assigned to perform in-plant actions to insert the 5 control rods using theSRI Test Switches Your current annual exposure is 0 mrem.What is the maximum TEDE exposure you are allowed to receive for the given task;without obtaining any extensions; in accordance with the guidance of RP-AA-203;Exposure Control and Authorization?
#5. Both Units are operating at rated conditions. FP is in a normal lineup. Fire system checks are being performed at the Lake Screen House. POINT 1 POINT 2 TIME PRESSURE PRESSURE 10:05 195 psig 175 psig 10:10 lowers to 140 psig lowers to 110 psig 10:15 lowers to 115 psig lowers to 85 psig 10:20 raises to 150 psig raises to 120 psig 10:25 raises to 195 psig raises to 175 psig Predict the automatic start and stop times of the Fire Protection Intermediate Jockey Pump. START STOP
#6. Unit 1 in MODE 2; withdrawing control rods. All IRM s on range 2. All SRM’s are declared INOPERABLE. Per Technical Specifications; operator action should include &
#7. During fuel moves; access to the 796″ level in the drywell is . . .
#8. Given the following plant conditions: – Reactor recirculation loop B pump tripped – Power and flow in the allowable region of Technical SpecificationsThermal Limits: 1. Average Planar Linear Heat Generation Rate 2. Minimum Critical Power Ratio 3. Linear Heat Generation Rate 4. Maximum Allowable Power RatioWhich of the above thermal limits must be adjusted?
#9. Regarding the Reactor Water Cleanup system; what automatic actions take place when reactor water level drops to -60 inches?
#10. A transient has resulted in a loss of power to the in-service station air dryer; OSA02D. Which of the following describes the air dryer’s response to the loss of power?
#11. Given the following indications: Unit 1 has an ATWS. SPDS Reactor Power Bar indicates CYAN/BLUE. Based on the SPDS indication alone Reactor power is ..
#12. Unit 1 is operating at 100% power: Unit 2 is in Mode 5 for a planned refueling outage with fuel movements in progress. A fuel handling accident occurs on Unit 2. Standby Gas Treatment is manually initiated. On 1PL27JC and 2PL27JC; Alarm 2-2; Reactor Building Ventilation System High Differential Pressure is received and does not clear. Below is the indication on 1PM06J: What is the PRIMARY operational concern as a result of this alarm?
#13. Which of the following conditions could be expected to cause RHR system damage? Provide LGA Fig V Suppression Suppression Chamber Pool Pressure (psig) Temperature (F)
#14. Unit 2 has scrammed from rated conditions. A leak has developed in the drywell.o Drywell pressure is 3.5 psig and stable.o Drywell Temperature is 200F. and stable.o RPV water level is +35.o RPV pressure is 850 psig.Which of the following statements describes the status of drywell cooling assuming nooperator actions have been taken?Drywell cooling is . . .
#15. A _____(1)_____ radiation trip in one channel of the Off-gas Post-treatment Monitoring Systemcombined with any other trip in the other channel will _____(2)_____.
#16. Which of the following describes the expected change in skimmer surge tank level if the first fuel pool cooling pump is started with the discharge valve full open AND the wier gate set at its highest position? Skimmer surge tank level …
#17. Why do radiation levels in the Secondary Containment in excess of Maximum Normal Radiation Levels require a GSEP Unusual Event be declared? The radiation level would…
#18. Reactor coolant temperature is 220 F Both reactor recirculation pumps are secured. Rx Vessel Bottom Head metal temperature is 170 F as read from the CRD temperature recorder.The following indications are found at the 1H13-P602 panell# 1603MPOiiJT TE*1nELE.’EHFIf starting Reactor Recirculation under these conditions, what point of temperature measurement would you verify for the bottom head area and what issue does this address?
#19. Why are Inboard and Outboard Primary Containment Isolation Valves powered from separate sources? To ensure that a loss or failure of (1) power supply(s) will (2) .
#20. Unit 2 is operating at 100% RTP. HPCS is running in full flow test for pump surveillance testing. A transient on the grid causes a grid voltage disturbance. Bus 243 voltage drops to 3800 volts.What will be the Division 3 system response to these conditions?The Bus will load shed 1 , to prevent damaging HPCS pump motor 2