LaSalle RO Quiz - ILTandMe

#1. Given the following initial conditions:- Reactor Power at 20% of RTP- Normal electrical lineup for Mode 1Considering the above initial conditions; which one of the following states the status of the eightwhite RPS Group Scram lights immediately following a Main Turbine trip when Turbine StopValve #1 sticks OPEN?

A. Top row LIT; and bottom row LIT

B. Top row OFF; and bottom row OFF

C. Top row LIT; and bottom row OFF

D. Top row OFF; and bottom row LIT

#2. Unit 1 is starting up. Steam Jet Air Ejector steam flow is 6500lbm/hr. 1N62-F300A/B Main Condenser Outlet Valves are open with their C/S in OPEN. What affect; if any; will placing the Control Switches for 1N62-F300A/B to AUTO have on Offgas system flow?

A. No affect.

B. Offgas flow will increase first; then return to its original value.

C. Offgas flow will increase.

D. Offgas flow will decrease.

#3. Given the following: 2A RHR is in Shutdown Cooling with a flow of 6200 gpm. 2E12-F047A; ‘A’ RHR HX INLET VLV; is OPEN. 2E12-F003A; ‘A’ RHR HX OUTLET VLV; is OPEN. 2E12-F048A; ‘A’ RHR HX BYPASS VLV; is OPEN Reactor water level is +45 inches on the Shutdown Range. No RR pumps are running. 2B33-F023A; RR PMP SUCT VLV; is OPEN. 2B33-F067A; RR PMP DSCH VLV; is CLOSED. Which of the following by itself would result in a loss of Shutdown Cooling due to inadequate reactor recirculation flow?

a. lowering Reactor water level by 7 inches

b. closing 2E12-F048A; ‘A’ RHR HX BYPASS VLV

c. closing 2E12-F003A; ‘A’ RHR HX OUTLET VLV

d. opening 2B33-F067A; RR PMP DSCH VLV

#4. What is the reason for an automatic scram when thermal-hydraulic instabilities are sensed during a partial or complete loss of forced circulation core flow? The reactor scram avoids exceeding …

A. the MCPR Safety Limit during flux oscillations.

B. the MFLPD operating limit due to low coolant flow.

C. the MAPRAT operating limit due to low coolant flow.

D. the Reactor Pressure Safety Limit during flux oscillations.

#5. Given the following conditions on Unit 1: Reactor water level: -60 inches and STABLE Which of the following Primary Containment Isolation Valve indications is EXPECTED?

a.

b.

c.

d.

#6. Given the following indications: AND TRACOR Point 3; 1A COOLER RETURN; indicates 135°F TRACOR Point 4; 1B COOLER RETURN; indicates 115°F Which of the following High Drywell temperature alarms; if any; are in? (1) 1PM13J-A503; SUP CHBR AIR PRESS HI/DW AIR TEMP HI (2) 1PM13J-B503; SUP CHBR AIR PRESS HI/DW AIR TEMP HI

a. 1 ONLY

b. 2 ONLY

c. 1 and 2

d. NO alarms

#7. Which of the following identifies a Tech Spec LCO condition which would require entry into the Required Action Statement and logged per OP-AA-111-101, OPERATING NARRATIVE LOGS AND RECORDS?

A. ‘V’ SRV INOP with Thermal Power at 30%

B. ‘A’ and ‘D’ SRMs INOP with Thermal Power at 20%

C. ‘A’ Rod Block Monitor (RBM) INOP with Thermal Power at 20%

D. ‘A’ and ‘E’ OPRM Modules are INOP with Thermal Power at 30%

#8. With the unit at full power operation; an operator selected the COUNT function on APRM Bcabinet and the APRM meter read 70%. If the operator bypasses an operable LPRM input tothe ” B” APRM; the __________ annunciator(s) will alarm. 1. Channel A1 Reactor Auto Scram 2. Channel B1 Reactor Auto Scram 3. Rod Out Block

a. 1 only

b. 2 only

c. 1 and 3 only

d. 2 and 3 only

#9. Which of the following completes the statements?The Unit 1 and Unit 2 Process Computer are fed from (1 ) UPS(Uninterruptable Power Supply).If Inverter output is lost; describe the effect on the Unit 1 and Unit 2 Processcomputer?The alternate power supply swaps (2)

A. (1) a common(2) without interruption

B. (1) separate(2) without interruption

C. (1)acommon(2) after a 5 second time delay

D. (1) separate(2) after a 5 second time delay

#10. Unit 1 is in Mode 4: Reactor Coolant temperature is 150 F Alternate shutdown cooling is in operation with heat removal provided by the reactor water cleanup system 2 RT filter demineralizers are in service The B RWCU Non-Regenerative Heat Exchanger is in use to maintain vessel temperature, with the local D/P gauge 1PDI-WR028, reading of 10.0 psidTwo minutes later: The local RBCCW D/P gauge 1PDI-WR028, reads 2 psid The WR head tank level is steadyWhat is the significance in the change of this D/P reading and the consequence of this change?

A. Reduced WR flow to the Non-Regenerative heat exchanger and a high motor temperature trip of the reactor water cleanup pumps.

B. Reduced WR flow to the Non-Regenerative heat exchanger and potential isolation of the RT filters.

C. Increased WR flow to the Non-Regenerative heat exchanger and could violate temperature limits on the reactor vesse

D. Increased WR flow to the Non-Regenerative heat exchanger and potential heat exchange cavitation

#11. Unit 2 was at rated conditions when a transient occurred. A Group 1 isolation has automatically initiated. LOA-MS-201; Recovery from a Group 1 Isolation; directs that the Group 1 isolation be reset. Why are the control switches VERIFIED in the CLOSED position prior to DEPRESSING the Inboard and Outboard Isolation Reset Pushbuttons? Failure to place the MSIV control switches in the CLOSED position will result in ………………

A. the MSIVs going OPEN when the Inboard and Outboard Isolation Reset Pushbuttons are DEPRESSED.

B. the Group 1 Isolation logic NOT resetting when the Inboard and Outboard Isolation Reset Pushbuttons are DEPRESSED.

C. the MSIVs indicating OPEN after the Inboard and Outboard Isolation Reset Pushbuttons

D. a reset of the Group 1 Isolation logic when the Inboard and Outboard Isolation Reset Pushbuttons are DEPRESSED, followed immediately by the INITIATION of a new Group 1 isolation signal.

#12. Unit 1 is at rated conditions Safety Relief Valve; 1B21-F013K; has inadvertently opened due to a failed ‘B’ solenoid during normal full power operation. Which of the following identifies the expected indications available to the operator when this event occurs? 1B21-R614A; Tail Pipe 1H13-P601 Valve Temperature Recorder Position Indication

a. 525 to 540°F RED light ON ONLY

b. 525 to 540°F GREEN light ON ONLY

c. 310 to 335°F GREEN light ON ONLY

d. 310 to 335°F RED light ON ONLY

#13. Unit 2 is at rated condtions when the #1 Turbine Control Valve drifts CLOSED. In response to the event; REACTOR power will initially (1); followed by (2)_

A. (1) RISE (2) ONLY #2 Turbine Control Valve going OPEN.

B. (1) RISE (2) the remaining Turbine Control Valves and/or Turbine Bypass Valves going OPEN

C. (1) LOWER (2) ONLY #2 Turbine Control Valve going OPEN.

D. (1) LOWER (2) the remaining Turbine Control Valves and/or Turbine Bypass Valves going OPEN.

#14. Using the attached reference and given the following: Unit 1 VR Radiation Monitors are reading 15 mr/hr. LGA-VQ-02; EMERGENCY CONTAINMENT VENT; is in progress on Unit 1 to allow for Low Pressure injection. Unit 1 VG is running. Unit 2 VG has been shutdown to ensure isokinetic flow. The operator notices that Reactor Building d/p indication is reading 0 WC. In accordance with procedures; the operator should use which of the following to make Reactor Building d/p more negative?

a. Unit 2 VG system

b. Unit 1 VQ system

c. Unit 2 VQ system

d. VR system

#15. HPCS automatically starts and injects to the vessel. Annunciators for Reactor Vessel Level 8 are received on 1H13-P601. Which of the following statements is true?

A. HPCS injection valve will close and the Full Flow Test valve will open.

B. HPCS injection valve will close and the HPCS pump breaker will trip.

C. HPCS will continue to inject due to the High Drywell signal.

D. HPCS pump will continue to run and the Minimum Flow valve will open.

#16. 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

a. A. 10:15 10:20

b. B. 10:15 10:25

c. C. 10:10 10:20

d. D. 10:10 10:25

#17. With the 1A RHR system operating in the LPCI injection mode; a TRIP of the Common Diesel Generator Cooling Water Pump will directly result in which of the following?

A. The A RHR pump room ambient temperature will be higher than expected due to the loss of cooling water to the area coolers.

B. The A RHR Pump seal temperatures will be higher than expected due to the loss of cooling water to the seal coolers.

C. The A RHR Pump Motor bearing temperatures will be higher than expected due to the loss of cooling water to the motor cooler.

D. The A RHR Pump bearing temperatures will be higher than expected due to the loss of cooling water to the pump bearing coolers.

#18. Unit 2 was at 100% power with HPCS OOSThen a LOCA with a loss of the SAT occurred. Drywell pressure is 3 psig RPV level is -30 inches and dropping 10 inches/minute RPV pressure is 900 psig and dropping 50#/minuteAssuming NO operator action select the highest value below that would result in arising Reactor Water Level.

A. 800 psig

B. 650 psig

C. 300 psig.

D. 200 psig

#19. Given the following Unit 2 conditions: – Reactor is in Hot Shutdown – All electrical power being supplied from the System Auxiliary Transformer (SAT) -The SAT trips for unknown reasons. – There were no bus fault alarms activated Assuming NO OPERATOR ACTIONs are taken; predict the status of the following buses 30 seconds after a trip of the SAT. Bus 236X | Bus 237Y

a. Energized | Energized

b. Energized | De-energized

c. De-energized | Energized

d. De-energized | De-energized

#20. Following a loss of primary containment cooling; the crew is preparing to perform non-emergency containment venting to control drywell pressure. While venting the drywell in this condition; the operator is directed to monitor the Standby Gas Treatment or Stack WRGM to…

a. maintain sufficient dilution flow.

b. stay below the toxic gas release limits.

c. maintain sufficient stack flow.

d. stay below radiation release limits.

Results