ML21193A298
| ML21193A298 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 06/16/2021 |
| From: | NRC Region 1 |
| To: | Exelon Generation Co |
| Shared Package | |
| ML20261H327 | List: |
| References | |
| EPID L-2021-OLL-0028 | |
| Download: ML21193A298 (9) | |
Text
Calvert Cliffs Applicant Questions/Responses 6/16/2021 Written Exam Applicant Question Number Question
Response
Donahoo 84 Need Tech Spec Reference for >1 HR Tech Spec.
Answer the question to the best of your ability with the information provided Donahoo 87 Need Reference For Systems SAF 1.5, 1.6, and 1.7 listed in 10CFR50.73.
Answer the question to the best of your ability with the information provided Donahoo 77 Need Tech Spec Reference for >1 HR Tech Spec.
Answer the question to the best of your ability with the information provided Donahoo 80 Vital Aux only needs 3 Vital AC Buses to be complete. Am I answering Part 2 for 1 Vital AC Bus being out (the conditions stated) or why the tech Spec addesses one of more Vital AC? More Vital AC Buses (2 or more) would make Vital Aux not met.
Answer the question to the best of your ability with the information provided Smith 11 Has any time passed since EDGs powered Buses or is question asked before loads tie on?
Answer the question to the best of your ability with the information provided
NRC Exam Seating Chart for written exam administered at Calvert Cliffs Nuclear Power Plant on June 16, 2021.
- 1. All tables used by applicants are a minimum of 3 apart in any direction from any other applicants table.
- 2. Written exam administered in the CCNPP NEF-1 Classroom 3.
Restroom facilities used by applicants closed to all other site personnel.
DALE HEFFNER COLE KWAMBOKA SMITH HUBER VALENTE DONAHOO RIDGELY
Loss of condenser v...
Question Preview Question ID: 1450967 02/09/2021 2 of 3 Question 1 ID: 1450967 Points: 1.00 Given the following conditions on Unit 1:
Reactor power is 7% power
The turbine is being rolled for a start up
The condenser has developed a small vacuum leak
Condenser pressure is 26.7 inches of Hg. and slowly lowering
The crew has entered AOP-7G, LOSS OF CONDENSER VACUUM What is: 1) the MINIMUM backpressure setpoint at which the Turbine Bypass Valves becomes unavailable, and 2) what does this setpoint protect?
A.
- 1) 20 inches Hg.
- 2) Low pressure turbine blades from stationary diaphragm rubbing B.
- 1) 20 inches Hg.
- 2) Main condenser from overpressure C.
- 1) 22.5 inches Hg.
- 2) Main condenser from overpressure D.
- 1) 22.5 inches Hg.
- 2) Low pressure turbine blades from stationary diaphragm rubbing Answer C
Answer Explanation A. INCORRECT - 1) Plausible since the setpoint is for the SGFP trip and the basis document states that feed flow will be lost when TBV pressure setpoint is reached, however the setpoint is 22.5 inches Hg. 2) Plausible since the LP turbine blades are sensitive to back pressure and stationary diaphragm rubbing, however the basis document stipulates that condenser overpressure is the reason the TBV permissive is lost.
B. INCORRECT - 1) Plausible since the setpoint is for the SGFP trip and the basis document states that feed flow will be lost when TBV pressure setpoint is reached, however the setpoint is 22.5 inches Hg. 2) Correct reason per basis document C. CORRECT - Basis Document NOTE 4 provides this information D. INCORRECT - 1) Correct TBV setpoint 2) Plausible since the LP turbine blades are sensitive to back pressure and stationary diaphragm rubbing, however the basis document stipulates that condenser overpressure is the reason the TBV permissive is lost.
Loss of condenser v...
Question Preview Question ID: 1450967 02/09/2021 3 of 3 Question Information Topic L97703 St. Lucie 2001 RO Exam: Loss of condenser vacuum and AOP User ID Q97703 System ID 1450967 Project CC-OPS Status Active Point Value 1.00 Time (min) 3 Open or Closed Reference Cognitive Level MEMORY Operator Discipline LO-ct Operator Type job References Provided K/A Justification SRO-Only Justification Additional Information K/A Info: 051 Loss of Condenser Vacuum AK3 - Knowledge of the reasons for the following responses as they apply to the Loss of Condenser Vacuum:
AK3.01 - Loss of steam dump capability upon loss of condenser vacuum
References:
AOP-7G Comments: Modified St. Lucie 2011 RO Exam for ILO Exam Bank use. JLG K/A Reference(s)
APE.051.AK3.01 Safety Function 4 Tier 1 Group 2 RO Imp: 2.8*
SRO Imp: 3.1*
Knowledge of the reasons for the following responses as they apply to the Loss of Condenser Vacuum: (CFR 41.5,41.10 / 45.6 / 45.13)
Loss of steam dump capability upon loss of condenser vacuum Learning Objective(s)
Question not linked to a Learning Objective Cross Reference Links None
SG Blowdown Tank Rad Automatic actions when RI-401...
Question Preview Question ID: 1442194 02/09/2021 2 of 3 Question 1 ID: 1442194 Points: 1.00 SG Blowdown Tank Rad Monitor, RI-4014, alarms. What automatic action(s), if any, occur(s)? Assume BD REC HI-TEMP DUMP, 1-BD-4088-CV, is open.
A.
Blowdown isolation CVs go shut and blowdown recovery shifts to Miscellaneous Waste system.
B.
Blowdown recovery shifts to Miscellaneous Waste System and operator action needed to shut SG Blowdown CVs.
C.
Blowdown isolation CVs go shut and blowdown recovery shifts to the Circulating Water System.
D.
None. Manual operator action is required to shut the SG Blowdown CVs and shift blowdown recovery to Miscellaneous Waste.
Answer A
Answer Explanation No explanation provided Question Information Topic SG Blowdown Tank Rad Automatic actions when RI-4014 alarms User ID SGBD Q24651 System ID 1442194 Project CC-OPS Status Active Point Value 1.00 Time (min) 3 Open or Closed Reference CLOSED Cognitive Level MEMORY Operator Discipline LO-I Operator Type RO 10CFR55 Content CFR: 41.7 Design, components, and functions of control and safety systems, including instrumentation, signals, interlocks, failure modes, and automatic and manual features.
References Provided N/A K/A Justification N/A SRO-Only Justification Not applicable Additional Information N/A
SG Blowdown Tank Rad Automatic actions when RI-401...
Question Preview Question ID: 1442194 02/09/2021 3 of 3 Basis: SG Blowdown Tank Rad Monitor R1-4014 Alarms High
References:
55.41:7 55.43:5 / SD-19KA1:
018K1.02KA2: K4.01 K/A Reference(s)
SF1.014.K4.01 Safety Function 1 Tier 2 Group 2 RO Imp: 2.5*
SRO Imp: 2.7*
Knowledge of RPIS design feature(s) and/or interlock(s) which provide for the following: (CFR: 41.5 / 45.7)
Upper electrical limit Learning Objective(s)
Evaluate the response of the SG Blowdown and Recovery system for the following conditions:
RI-4014 ( SG Blowdown tank) in alarm
RI-4095 ( SG Blowdown Recovery) in alarm User (Sys) ID 24428 (1203645)
Cross Reference Links None
2021 NRC Exam Schedule Reactor Operator Candidates (RO)
Instant SRO Candidates (SROI)
SRO Upgrade Candidates (SROU)
- 1 RO-1 (2) Valente
- 1 SROI-1 (1) Heffner
- 1 SROU-1 (1) Donahoo
- 2 RO-2 (3) Huber
- 2 SROI-2 (2) Smith
- 2 SROU-2 (3) Ridgely
- 3 SROI-3 (2) Kwamboka
- 4 SROI-4 (3) Cole
- 5 SROI-5 (1) Dale Simulator Scenarios (June 7th, 2021)
Scenario 3 Scenario 3 Scenario 3 ATC SROI-4 Setzer RO-2 Setzer SROI-5 Fuller BOP RO-1 Ott SROU-1 Fuller SROU-2 Setzer US SROI-1 Fuller SROI-2 Ott SROI-3 Ott Simulator Scenarios (June 8th, 2021)
Scenario 2 Scenario 2 Scenario 2 ATC SROI-1 Fuller SROI-2 Ott SROI-3 Ott BOP RO-1 Ott RO-2 Setzer SROI-5 Fuller US SROI-4 Setzer SROU-1 Fuller SROU-2 Setzer Simulator Scenarios (June 9th, 2021)
Scenario 4 ATC RO-1 Ott BOP SROI-4 Setzer US SROI-5 Fuller Evaluators NRC (1) Fuller SROI-1 Trace Heffner, SROI-5 Kevin Dale, SROU-1 Corey Donahoo NRC (2) Ott RO-1 Marissa Valente, SROI-2 Jennifer Smith, SROI-3 Roselyn Kwamboka NRC (3) Setzer RO-2 Joe Huber, SROI-4 Grant Cole, SROU-2 Ben Ridgely NRC (4) Hartle Plant and Admin JPMs
2021 NRC Exam Schedule Time Monday 6/7/2021 Tuesday 6/8/2021 Wednesday 6/9/2021 Thursday 6/10/2021 Friday 6/11/2021 Monday-Tuesday 6/14-6/15 Wednesday 6/16/2021 0700 Scenario 3 JPM(s)
Plt-1 (ALL)
Scenario 2 JPM(s)
Plt-3 (RO, SROI)
Scenario 4 RO-2 SRO-2 JPMs Sim-6 (ALL)
Sim-1 (ALL)
RO-4 SRO-4 SELF STUDY SELF STUDY RO Portion of Written Exam 0730 0800 0830 0900 Scenario 3 JPM(s)
Plt-1 (ALL)
Scenario 2 JPM(s)
Plt-3 (RO, SROI)
JPM(s)
Sim-3 (RO, SROI)
RO-2 SRO-2 0930 1000 1030 1100 Lunch Lunch Lunch Lunch Lunch Lunch 1130 1200 Scenario 3 JPM(s)
Plt-2 (ALL)
Scenario 2 JPM(s)
RO-1 SRO-1 JPM(s)
Sim-2 (ALL)
RO-3 SRO-3 JPMs Sim-5 (RO, SROI)
Sim-8 (RO, SROI)
SRO-5 SELF STUDY SELF STUDY 1230 1300 SRO Portion of Written Exam 1330 1400 JPM(s)
Sim-7 (RO)
Plt-2 (ALL)
JPM(s)
Sim-4 (RO, SROI) 1430 1500 1530 1600