Q68 — Control Rod Movement Requirements
G2.1.37 (4.3)
During non-transient conditions, what is the MINIMUM information that the reactor operator shall state just prior to manually manipulating control rods in accordance with OP-AP-300-1001, PWR Control Rod Movement Requirements?
A. The selected control bank initial position, target control rod position, and the direction of movement.
B. The initial TAVG, target control rod position, the final expected TAVG.
C. The initial TAVG, target TAVG, rod direction, and the expected number of steps required to achieve the target TAVG.
D. The initial NIS indicated Power Level, target control rod position, and the final expected NIS Power Level.
▶ Show Answer & Explanation
✓ A. Correct. IAW OP-AP-300-1001, PWR Control Rod Movement Requirements, step 4.4.3; "The RO shall STATE the selected control rod bank initial position, target control rod position and the direction of movement."
✗ B. Incorrect. Plausible because using simple reactivity rules of thumb (time in life reactivity plan), the candidate may believe the minimum information required is initial and expected final RCS temperature and target control rod position. Plausible because during initial reactor startup, TAVG is recorded every 15 minutes.
✗ C. Incorrect. Plausible because using simple reactivity rules of thumb (time in life reactivity plan), the candidate may believe the minimum information required is initial and expected final RCS temperature for a specific amount of rod movement (steps). Plausible because during initial reactor startup, TAVG is recorded every 15 minutes.
✗ D. Incorrect. Plausible because the candidate could believe that only initial, final power level, and target rod position are required. During a reactor startup, power level indication would be monitored.
Ref: OP-AP-300-1001, PWR Control Rod Movement Requirements | LO: N/A | Source: New | Cognitive: Fundamental
Connections
- Related systems: Control Rod Drive
- Related procedures: OP-AP-300-1001 — PWR Control Rod Movement Requirements
- Related exam: 2020 NRC Written Exam