Q33 — Fuel Handling Crane Rad Monitor
034 FHE-K6.02 (2.6)
Given:
• Fuel Handling activities are in progress in the Fuel Handling Building
At time 0900
• 2R32A (Fuel Handling Crane Radiation Monitor) fails high and the High Radiation Alarm for 2R32A actuates
Considering ONLY the following actions:
1. ALL crane motion is locked out
2. ALL crane motion other than downward movement of suspended load is locked out
3. FHB ventilation is transferred to HEPA and Charcoal Filters and FHB Exhaust Fans are started
Which ONE of the following completes the statement below?
With 2R32A failed high, ONLY Action(s) ___ will AUTOMATICALLY occur.
• Fuel Handling activities are in progress in the Fuel Handling Building
At time 0900
• 2R32A (Fuel Handling Crane Radiation Monitor) fails high and the High Radiation Alarm for 2R32A actuates
Considering ONLY the following actions:
1. ALL crane motion is locked out
2. ALL crane motion other than downward movement of suspended load is locked out
3. FHB ventilation is transferred to HEPA and Charcoal Filters and FHB Exhaust Fans are started
Which ONE of the following completes the statement below?
With 2R32A failed high, ONLY Action(s) ___ will AUTOMATICALLY occur.
A. 1 and 3
B. 2 and 3
C. 2
D. 1
▶ Show Answer & Explanation
✓ C. Correct. With 2R32A failed high, ONLY Action 2 will AUTOMATICALLY occur. ALL crane motion other than downward movement of suspended load is locked out.
✗ A. Incorrect but plausible. FHB Ventilation will automatically shift on a high radiation on 2R5 and 2R9. The candidate could incorrectly conclude that a high radiation within the FHB as read by 2R32A would also cause the FHB ventilation to automatically shift. Action 1 is partially correct as discussed in Distractor D.
✗ B. Incorrect but plausible. FHB Ventilation will automatically shift on a high radiation on 2R5 and 2R9. The candidate could incorrectly conclude that a high radiation within the FHB as read by 2R32A would also cause the FHB ventilation to automatically shift (Action 3). Action 2 will automatically occur.
✗ D. Incorrect but plausible. This distractor is partially correct. Consequently, the candidate could incorrectly conclude With 2R32A failed high, ONLY Action 1 will AUTOMATICALLY occur.
Ref: S2.OP-AB.RAD-0001 | LO: NOS05ABRAD1-06 (ABNORMAL RADIATION), Obj 1.A — Describe the operation of radiation monitors as applied to S2.OP-AB.RAD-0001 including actions that occur as a result of the channel in warning or alarm | Source: New | Cognitive: Fundamental/Memory
Connections
- Related systems: Radiation Monitoring, FHV, Refueling
- Related procedures: AB.RAD-0001 — Radiation Monitor Abnormality
- Related exam: 2019 NRC Written Exam