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Exams > 2019 Q73 — LOCA-2 CAS ECCS Restart Criteria

2019 Q73 — LOCA-2 CAS ECCS Restart Criteria

⚠️ DRAFT
Q73 — LOCA-2 CAS ECCS Restart Criteria WE03 LOCA Cooldown and Depressurization-EK2.2 (3.7)
Given:
• The crew has just completed the SI Pump Reduction and Charging Pump Reduction steps of 2-EOP-LOCA-2 (POST LOCA COOLDOWN AND DEPRESSURIZATION)
• Containment Pressure is 2.4 psig

Considering ONLY the following plant conditions below:
1. RCS SUBCOOLING 0°F
2. PZR LEVEL CAN NOT BE MAINTAINED GREATER THAN 11%

Which ONE of the following completes the statement below?

In accordance with 2-EOP-LOCA-2 CAS, the crew is required to start ECCS Pumps as necessary to restore the required plant parameter(s) when ___ is/are met.
A. ONLY Condition 1
B. ONLY Condition 2
C. EITHER Condition
D. ONLY BOTH Conditions
▶ Show Answer & Explanation
✓ C. Correct. IAW 2-EOP-LOCA-2 CAS, RCS SUBCOOLING 0°F or PZR LEVEL CAN NOT BE MAINTAINED GREATER THAN 11% will require the crew to start ECCS Pumps as necessary to restore the required plant parameter(s).
✗ A. Incorrect but plausible. Since all of the distractors contain a portion of the correct answer, all distractors are plausible.
✗ B. Incorrect but plausible. Since all of the distractors contain a portion of the correct answer, all distractors are plausible.
✗ D. Incorrect but plausible. Since all of the distractors contain a portion of the correct answer, all distractors are plausible.
Ref: 2-EOP-LOCA-2 (Post LOCA Cooldown and Depressurization) | LO: NOS05LOCA02-03 | Source: New | Cognitive: Lower

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