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Exams > 2019 Q72 — FRCC-1 ECCS Valve Alignment

2019 Q72 — FRCC-1 ECCS Valve Alignment

⚠️ DRAFT
Q72 — FRCC-1 ECCS Valve Alignment EPE: 074 Inadequate Core Cooling-EA1.27 (4.2)
Given:
• The crew is performing 1-EOP-FRCC-1 (RESPONSE TO INADEQUATE CORE COOLING) Step 3, "Safeguards Valve Alignment"
• The SECs are operating in Mode 1
• The current position of the following valves are:

1SJ41SJ51SJ121SJ1311SW122
BIT INLETBIT INLETBIT OUTLETBIT OUTLETSW TO 11 CC HX
OPENCLOSEDOPENOPENOPEN

In accordance with 1-EOP-FRCC-1, which ONE of the following completes the statement below?

The crew _(1)_ attempt to open 1SJ5 and _(2)_ attempt to close 11SW122.
A. (1) will (2) will NOT
B. (1) will (2) will
C. (1) will NOT (2) will NOT
D. (1) will NOT (2) will
▶ Show Answer & Explanation
✓ A. Correct. With SECs operating in Mode 1 and IAW 1-EOP-FRCC-1 (RESPONSE TO INADEQUATE CORE COOLING) Step 3, the crew is required to open 1SJ5 and is NOT required to close 11SW122.
✗ B. Part 1 is correct. For Part 2, 11SW122 is required to be closed when the SECs are in MODE 3. The candidate could incorrectly determine the SECs are in MODE 3 and conclude that 11SW122 is required to be closed.
✗ C. For Part 1, 1SJ4 is open and only 1SJ4 or 1SJ5 must be open for ECCS flow into the BIT to be initiated. Consequently, the candidate could incorrectly conclude that FRCC-1 only requires 1SJ4 or 1SJ5 to be open. Part 2 is correct.
✗ D. For Part 1, 1SJ4 is open and only 1SJ4 or 1SJ5 must be open for ECCS flow into the BIT to be initiated. Consequently, the candidate could incorrectly conclude that FRCC-1 only requires 1SJ4 or 1SJ5 to be open. For Part 2, 11SW122 is required to be closed when the SECs are in MODE 3. The candidate could incorrectly determine the SECs are in MODE 3 and conclude that 11SW122 is required to be closed.
Ref: 1-EOP-FRCC-1 (Response to Inadequate Core Cooling) | LO: NOS05FRCC00-04 | Source: New | Cognitive: Higher

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