Q67 — Shift Turnover Restrictions
G2.1.3 (3.7)
In accordance with OP-AA-112-101, Shift Turnover and Relief, a shift turnover SHALL NOT be conducted in which of the following circumstances?
A. A plant startup is in progress. The generator has just been synched to the grid, and SG level control is in manual.
B. A reactor startup in progress. SR NIS have indicated 3 doublings since rod withdrawal commenced.
C. A diesel surveillance is in progress, diesel is running unloaded.
D. A power ascension is in progress at 10% per hour.
▶ Show Answer & Explanation
✓ B. Correct. IAW OP-AA-112-101 step 4.1.2, evolutions that may interfere with or distract the operators during turnovers such as the approach to criticality, rapid down-power, significant plant evolution, transient response, etc. should not be performed. The diesel surveillance, SG level control in manual and a 10% per hour power ascension does not interfere with the operators from performing a shift turnover. Shift turnovers should not be performed during the approach to criticality and closing of the first generator output breaker during synchronization evolutions since these are important evolutions requiring continued operator attention.
✗ A. Plausible if the applicant believes that with the SG level control in manual that this task is critical enough that the operator should not be distracted for turnover.
✗ C. Plausible if the applicant believes that running a diesel surveillance is a critical task that the operator should not be distracted for turnover.
✗ D. Plausible if the applicant believes that a 10% per hour power ascension is a critical task that the operator should not be distracted for turnover.
Ref: OP-AA-112-101 (R7) | LO: NOS05CONDOP-14, Obj 5 — Describe requirements for Control Room or Field Activities: Shift Relief and Turnover | Source: Bank — Beaver Valley NRC 2017 RO67 | Cognitive: Fundamental/Memory
Connections
- Related admin: OP-AA-112-101 — Shift Turnover and Relief
- Related exam: 2022 NRC Written Exam