Q12 — Containment Cooling DBA Configurations
022 CCS-A1.03 (3.2)
Given:
Consider the following Containment Cooling configurations with a DBA occurring inside containment:
1. ONLY ONE CS Pump operating
2. ONLY ONE CS Pump operating plus ONLY 3 CFCUs operating
3. ONLY ONE CS Pump operating plus ONLY 2 CFCUs operating
4. ONLY 5 CFCUs operating
Which ONE of the following completes the statements below?
___ are the MINIMUM Containment Cooling components required to be in operation that will maintain Containment Pressure, Temperature and Humidity within design limits with a DBA occurring inside containment.
Consider the following Containment Cooling configurations with a DBA occurring inside containment:
1. ONLY ONE CS Pump operating
2. ONLY ONE CS Pump operating plus ONLY 3 CFCUs operating
3. ONLY ONE CS Pump operating plus ONLY 2 CFCUs operating
4. ONLY 5 CFCUs operating
Which ONE of the following completes the statements below?
___ are the MINIMUM Containment Cooling components required to be in operation that will maintain Containment Pressure, Temperature and Humidity within design limits with a DBA occurring inside containment.
A. 1 or 3
B. 1 or 4
C. 2 or 4
D. 2 or 3
▶ Show Answer & Explanation
✓ C. Correct. The following Containment Cooling configurations will maintain Containment Pressure, Temperature and Humidity within design limits with a DBA occurring inside containment: 2 CS Pumps (not given in question stem), 1 CS Pump + 3 CFCUs, and 5 CFCUs.
✗ A. Since all of the given Containment Cooling configurations are possible containment cooling configurations, then all of the distractors are plausible.
✗ B. Since all of the given Containment Cooling configurations are possible containment cooling configurations, then all of the distractors are plausible.
✗ D. Since all of the given Containment Cooling configurations are possible containment cooling configurations, then all of the distractors are plausible.
Ref: NOS05CONTMT-15 (Containment and Containment Support Systems) | LO: NOS05CONTMT-15 — Describe how CFCUs impact the Containment and Containment Support Systems during normal and abnormal conditions | Source: New | Cognitive: Lower (Memory)
Connections
- Related systems: CFCUs, Containment Spray
- Related exam: 2018 NRC Written Exam