NANTeL Conduct of Operations 3 — Questions and Answers
Question 1: Which of the following best describes 'conservative decision-making' in a nuclear plant context?
- Choosing the option that minimizes cost
- Choosing the option that errs on the side of safety when uncertain (Correct answer)
- Deferring all decisions to senior management
- Following the most recently issued procedure revision
Correct answer: Choosing the option that errs on the side of safety when uncertain
Conservative decision-making means selecting the safest available option whenever there is uncertainty about plant conditions or outcomes.
Question 2: What is the significance of maintaining a 'questioning attitude' during plant operations?
- It demonstrates distrust of procedure writers
- It helps identify potential errors and unexpected conditions before they occur (Correct answer)
- It is required only during initial operator licensing exams
- It slows down operations and is discouraged during emergencies
Correct answer: It helps identify potential errors and unexpected conditions before they occur
A questioning attitude encourages operators to challenge assumptions and verify conditions, catching errors before they escalate.
Question 3: During a shift turnover, what information is essential to communicate to the oncoming shift?
- Only equipment that is currently locked out
- Plant status, in-progress work, abnormal conditions, and pending evolutions (Correct answer)
- Only items that occurred in the last hour of the shift
- Personnel schedules and overtime assignments
Correct answer: Plant status, in-progress work, abnormal conditions, and pending evolutions
Effective shift turnover must convey comprehensive plant status, outstanding issues, and upcoming work to maintain continuity and safety.
Question 4: Which document typically serves as the primary authority for day-to-day plant operations and sets the operating limits that must not be exceeded?
- The corrective action program database
- The Technical Specifications (Correct answer)
- The site emergency response plan
- The annual security assessment
Correct answer: The Technical Specifications
Technical Specifications are NRC-approved limiting conditions for operation that define safety boundaries operators must maintain.
Question 5: What does 'place-keeping' in procedure use refer to?
- Filing completed procedures in the correct folder
- Tracking your current position in a procedure to prevent steps from being repeated or skipped (Correct answer)
- Scheduling future procedures based on workload
- Verifying that procedures are up to date before use
Correct answer: Tracking your current position in a procedure to prevent steps from being repeated or skipped
Place-keeping techniques, such as using a finger or sign-off, ensure operators do not accidentally skip or repeat steps in a procedure.
Question 6: In the hierarchy of authority at a nuclear plant, who typically has overall responsibility for safe plant operations during a shift?
- The senior reactor operator (SRO) licensed as shift supervisor (Correct answer)
- The maintenance general foreman
- The radiation protection manager
- The plant manager
Correct answer: The senior reactor operator (SRO) licensed as shift supervisor
The licensed SRO serving as shift supervisor holds overall responsibility for safe operations and plant status during their shift.
Question 7: Why are simultaneous evolutions sometimes restricted or limited at nuclear power plants?
- They increase paperwork and administrative burden
- Performing multiple evolutions at once increases cognitive load and the risk of errors (Correct answer)
- They require additional NRC notification
- They violate union work rules
Correct answer: Performing multiple evolutions at once increases cognitive load and the risk of errors
Limiting simultaneous evolutions reduces distraction and cognitive overload, which decreases the likelihood of errors during safety-significant work.
NANTeL Conduct of Operations 3
Which of the following best describes 'conservative decision-making' in a nuclear plant context?