Q81 — LOCA Outside Containment Transition
WE04 LOCA Outside Containment - EA2.1 (4.3)
Given:
• The crew has just transitioned to 2-EOP-LOCA-6 (LOCA Outside Containment)
In accordance with 2-EOP-LOCA-6, which ONE of the following completes the statements below?
If the crew is NOT successful in finding and isolating the leak during performance of the 2-EOP-LOCA-6, the crew will transition to _(2)_.
• The crew has just transitioned to 2-EOP-LOCA-6 (LOCA Outside Containment)
In accordance with 2-EOP-LOCA-6, which ONE of the following completes the statements below?
If the crew is NOT successful in finding and isolating the leak during performance of the 2-EOP-LOCA-6, the crew will transition to _(2)_.
A. 2 EOP-LOCA-1 (LOSS OF REACTOR COOLANT)
B. 2-EOP-LOCA-5 (LOSS OF EMERGENCY RECIRCULATION)
C. 2 EOP-LOCA-2 (POST LOCA COOLDOWN AND DEPRESSURIZATION)
D. S2.OP-AB.LOCA-0001 (SHUTDOWN LOCA)
▶ Show Answer & Explanation
✓ B. Correct. IAW 2-EOP-LOCA-6, if the crew is NOT successful in finding and isolating the leak during performance of the 2-EOP-LOCA-6, the crew will transition to 2-EOP-LOCA-5 (LOSS OF EMERGENCY RECIRCULATION).
✗ A. Incorrect but plausible. Transitioning to 2-EOP-LOCA-1 from 2-EOP-LOCA-6 would be correct if the crew had isolated the leak during performance of the 2-EOP-LOCA-6.
✗ C. Incorrect but plausible. 2-EOP-LOCA-2 is another procedure that deals with a loss of RCS inventory. Consequently, the candidate could incorrectly conclude that transitioning to 2-EOP-LOCA-2 from 2-EOP-LOCA-6 is appropriate.
✗ D. Incorrect but plausible. S2.OP-AB.LOCA-0001 is another procedure that deals with a loss of RCS inventory. Consequently, the candidate could incorrectly conclude that transitioning to S2.OP-AB.LOCA-0001 from 2-EOP-LOCA-6 is appropriate.
Ref: EOP-LOCA-6 (LOCA Outside Containment) | LO: NOS05LOCA06-03 — Describe the EOP mitigation strategy during LOCA OUTSIDE CONTAINMENT | Source: New | Cognitive: Lower