Q14 — Containment Spray Reset
026 CSS-K4.05 (3.5)
Given:
• An AUTOMATIC Safety Injection and Containment Spray Actuation have occurred
• A MANUAL backup of the Containment Spray Actuation has NOT been performed
• The crew is preparing to reset Containment Spray in accordance with 2-EOP-LOCA-1 (LOSS OF REACTOR COOLANT)
Which ONE of the following completes the statement below?
The NCO will reset one train of Containment Spray by ___
• An AUTOMATIC Safety Injection and Containment Spray Actuation have occurred
• A MANUAL backup of the Containment Spray Actuation has NOT been performed
• The crew is preparing to reset Containment Spray in accordance with 2-EOP-LOCA-1 (LOSS OF REACTOR COOLANT)
Which ONE of the following completes the statement below?
The NCO will reset one train of Containment Spray by ___
A. depressing bezel button B ONLY
B. turning key switches A AND C in the clockwise direction 180 degrees ONLY
C. depressing bezel button B then turning key switches A AND C in the clockwise direction 180 degrees
D. turning key switches A AND C in the clockwise direction 180 degrees and then pressing bezel button B
▶ Show Answer & Explanation
✓ A. Correct. Resetting one train of Containment Spray is accomplished by depressing bezel button B.
✗ B. Incorrect but plausible. Not all bezel buttons in the control room actually perform an action. Consequently, the candidate could incorrectly conclude that rotating key switches A and C only will reset one train of Containment Spray.
✗ C. Incorrect but plausible. The candidate could incorrectly conclude that resetting one train of Containment Spray requires a combination of key switch and bezel button actuations.
✗ D. Incorrect but plausible. The candidate could incorrectly conclude that resetting one train of Containment Spray requires a combination of key switch and bezel button actuations.
Ref: NOS05CSPRAY-06 (Containment Spray System) | LO: NOS05CSPRAY-06 LO 18 — Identify and describe the Control Room controls, indications, and alarms associated with the Containment Spray System | Source: New | Cognitive: Higher
Connections
- Related systems: Containment Spray
- Related EOPs: EOP-LOCA-1 — Loss of Reactor or Secondary Coolant
- Related exam: 2019 NRC Written Exam