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Exams > 2023 Q63 — Fire Protection / 2FP147 Containment Isolation

2023 Q63 — Fire Protection / 2FP147 Containment Isolation

⚠️ DRAFT
Q63 — Fire Protection / 2FP147 Containment Isolation T2G2 086 A1.06 (3.0)
Given:
- Salem Unit 2 is at 100% power
- OHA A-7, FIRE PROT FIRE, is alarming
- Fire alarm zones on 2RP5 Panel indicates a fire detected inside Panel 335 in containment

Which of the following completes the following statement concerning the operation of the 2FP147, Fire Protection Containment Isolation Valve?

1. Based on a valid fire detected inside containment, the 2FP147 will (1) .
2. On a Phase A signal, the 2FP147 (2) automatically close.
A. (1) automatically open (2) will NOT
B. (1) automatically open (2) will
C. (1) need to be manually opened from the 2RP5 panel (2) will
D. (1) need to be manually opened from the 2RP5 panel (2) will NOT
▶ Show Answer & Explanation
✓ C. Correct. The 2FP147 requires to be manually opened at the 2RP5 panel when a valid fire is detected inside containment. The 2FP147 will close on a Phase A signal.
✗ A. Plausible because fire protection systems will actuate if the fire detector sensor is triggered. Incorrect in that even though the fire zone fire water header is triggered, the 2FP147 still needs to be manually opened from the control room.
✗ B. Plausible because fire protection systems will actuate if the fire detector sensor is triggered. Incorrect in that even though the fire zone fire water header is triggered, the 2FP147 still needs to be manually opened from the control room.
✗ D. Plausible because the operator may believe that fire water inside containment is the priority and will not auto isolate.
Ref: NOS05FIRPRO-12 | LO: NOS05FIRPRO-12, Objective 13. Given plant conditions, relate the Fire Protection System with the following: Containment and Containment Press Relief | Source: Modified - Salem 2019 NRC RO75 | Cognitive: Fundamental/Memory

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