Q75 — EOP-FRCE-3 Containment Radiation and CFCU Speed
W/E16 High Containment Radiation-EK1.2 (2.7)
Given:
• 2R44A and 2R44B (High Range Containment Accident Monitors) are in alarm
• Containment Radiation is 7E2 R/HR
• The crew has just entered 2-EOP-FRCE-3 (Response To High Containment Radiation)
Which ONE of the following completes the statements below?
In accordance with 2-EOP-CFST-1 and based on the Containment Radiation levels, Containment is considered _(1)_.
In accordance with 2-EOP-FRCE-3, the crew is required to operate the 21 THRU 25 CFCUs in _(2)_ speed.
• 2R44A and 2R44B (High Range Containment Accident Monitors) are in alarm
• Containment Radiation is 7E2 R/HR
• The crew has just entered 2-EOP-FRCE-3 (Response To High Containment Radiation)
Which ONE of the following completes the statements below?
In accordance with 2-EOP-CFST-1 and based on the Containment Radiation levels, Containment is considered _(1)_.
In accordance with 2-EOP-FRCE-3, the crew is required to operate the 21 THRU 25 CFCUs in _(2)_ speed.
A. _(1)_ NORMAL _(2)_ low
B. _(1)_ NORMAL _(2)_ high
C. _(1)_ ADVERSE _(2)_ low
D. _(1)_ ADVERSE _(2)_ high
▶ Show Answer & Explanation
✓ A. Correct. For Part 1, IAW 2-EOP-CFST-1, since containment radiation is less than 1E05 R/HR, containment is considered NORMAL. For Part 2, IAW 2-EOP-FRCE-3 Step 2, the crew is required to operate the 21 THRU 25 CFCUs in low speed.
✗ B. Part 1 is correct. For Part 2, the candidate could incorrectly conclude that running the CFCUs in high speed would better circulate the containment atmosphere which would better mitigate the high radiation condition.
✗ C. For Part 1, since 2R44A and 2R44B (High Range Containment Accident Monitors) are in alarm, the candidate could incorrectly conclude that containment is ADVERSE. Part 2 is correct.
✗ D. For Part 1, since 2R44A and 2R44B (High Range Containment Accident Monitors) are in alarm, the candidate could incorrectly conclude that containment is ADVERSE. For Part 2, the candidate could incorrectly conclude that running the CFCUs in high speed would better circulate the containment atmosphere which would better mitigate the high radiation condition.
Ref: 2-EOP-FRCE-3 (Response To High Containment Radiation) | LO: NOS05FRCE00-06 (EOP-FRCE-1, 2, AND 3 CONTAINMENT ENVIRONMENT) | Source: New | Cognitive: Higher
Connections
- Related systems: CFCUs, Radiation Monitoring, Containment
- Related EOPs: EOP-FRCE-3 — Response to High Containment Radiation Levels, EOP-CFST-1 — Critical Safety Function Status Trees
- Related exam: 2018 NRC Written Exam