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Exams > 2020 Q79 — SGTR-1 Subcooling Loss Transition to SGTR-3

2020 Q79 — SGTR-1 Subcooling Loss Transition to SGTR-3

⚠️ DRAFT
Q79 — SGTR-1 Subcooling Loss Transition to SGTR-3 000038EA2.07 (4.8)
Given:
• The crew is performing 2-EOP-SGTR-1, Steam Generator Tube Rupture.
• Safety Injection has been terminated.
• The crew has just restored normal charging alignment per 2-EOP-SGTR-1, step 30 when RCS subcooling lowers to 0 °F.

In accordance with 2-EOP-SGTR-1, which ONE of the following completes the statement below:
The crew will start ECCS pumps as necessary to restore subcooling and ___________.
A. remain in 2-EOP-SGTR-1, Steam Generator Tube Rupture.
B. go to 2-EOP-SGTR-2, Post SGTR Cooldown.
C. go to 2-EOP-SGTR-3, SGTR with LOCA – Subcooled Recovery.
D. go to 2-EOP-SGTR-4, SGTR with LOCA – Saturated Recovery.
▶ Show Answer & Explanation
✓ C. Correct. In accordance with 2-EOP-SGTR-1 CAS, "If SI has been terminated and RCS subcooling 0°F, then start ECCS pumps as necessary to restore subcooling and GO TO EOP-SGTR-3" (SGTR with LOCA – Subcooled Recovery).
✗ A. Plausible because based on plant conditions, the candidate could incorrectly conclude that remaining in EOP-SGTR-1 is required.
✗ B. Plausible because transitioning to EOP-SGTR-2 is a possible transition from EOP-SGTR-1. However, this is not correct for given plant conditions.
✗ D. Plausible because the candidate may believe that once subcooling has been lost, a transition to EOP-SGTR-4 (SGTR with LOCA – Saturated Recovery) is required.
Ref: 2-EOP-SGTR-1, Steam Generator Tube Rupture and Bases | LO: N/A | Source: Bank – Salem ILT 17-01 Audit Exam, SRO Q4 | Cognitive: Comprehension | SRO-Only: Requires assessment of plant conditions and selection of procedure to mitigate/recover

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