Q97 — RCS Leak / CVCS 2CV6 / TS 3.4.7.2
T3 G2.2.44 (4.4)
Given:
- Salem Unit 2 is at 100% power
At Time 0500:
- The crew enters S2.OP-AB.RC-0001, RCS Leak, for a suspected RCS leak
At Time 0505:
- The estimated leak rate is 12 gpm
- The leak is identified from the 2CV6, Letdown Relief Valve
At Time 0516:
- Letdown is isolated and the leakage has stopped
Which of the following completes both statements?
1. At time 0505, what is the status of TS 3.4.7.2, Operational Leakage?
2. At time 0516, the CRS __ required to make an Emergency Declaration.
[REFERENCE PROVIDED]
- Salem Unit 2 is at 100% power
At Time 0500:
- The crew enters S2.OP-AB.RC-0001, RCS Leak, for a suspected RCS leak
At Time 0505:
- The estimated leak rate is 12 gpm
- The leak is identified from the 2CV6, Letdown Relief Valve
At Time 0516:
- Letdown is isolated and the leakage has stopped
Which of the following completes both statements?
1. At time 0505, what is the status of TS 3.4.7.2, Operational Leakage?
2. At time 0516, the CRS __ required to make an Emergency Declaration.
[REFERENCE PROVIDED]
A. (1) NOT Met (2) is NOT
B. (1) NOT Met (2) is
C. (1) Met (2) is
D. (1) Met (2) is NOT
▶ Show Answer & Explanation
✓ D. Correct. Per the bases of S2.OP-AB.RC-0001, a RCS leak on the CVCS system that can be isolated does not require entry into TS 3.4.7.2 or requires an Emergency Notification (UE EAL SU5.1).
✗ A. Part 1 is incorrect. Plausible because the SRO may believe that the CVCS system is part of the RCS system. Incorrect in that the CVCS system is considered an auxiliary system and not part of the RCS system. Part 2 is correct.
✗ B. Part 1 is incorrect. Plausible because the SRO may believe that the CVCS system is part of the RCS system. Incorrect in that the CVCS system is considered an auxiliary system and not part of the RCS system. Part 2 is incorrect. Plausible because the SRO may incorrectly determine that the RCS leakage exceeded the criteria EAL SU5.1.
✗ C. Part 1 is incorrect. Plausible because the SRO may believe that the CVCS system is part of the RCS system. Incorrect in that the CVCS system is considered an auxiliary system and not part of the RCS system. Part 2 is incorrect. Plausible because the SRO may incorrectly determine that the RCS leakage exceeded the criteria EAL SU5.1.
Ref: S2.OP-AB.RC-0001 (R18), EP-SA-325-218 (RO) | LO: NOS05ABRC01-04, Objective 2. Describe, in general terms, the actions taken in S1/S2.OP-AB.RC-0001 and the bases for the actions in accordance with the Technical Bases Document | Source: New | Cognitive: Comprehension/Analysis
Connections
- Related systems: CVCS, RCS
- Related procedures: AB.RC-0001
- Related tech specs: TS 3.4.7.2
- Related admin: EP-SA-325 — Emergency Plan Implementing Procedures
- Related exam: 2023 NRC Written Exam