NANTeL Human Performance Principles 5

Question 1

Which statement BEST describes the role of 'self-checking' (STAR) versus 'peer-checking' in human performance?

Accepted Answer

Self-checking is an individual discipline while peer-checking adds an independent verification

Answer

Self-checking (STAR) is a personal discipline applied before any action, while peer-checking adds a second independent set of eyes for critical or complex steps.

Question 2

A plant operator notices that a procedure step directs them to open a valve, but opening it would violate a technical specification limit condition for operation (LCO). The operator should:

Accepted Answer

Stop and immediately notify the shift supervisor before proceeding

Answer

Technical specification LCOs are regulatory requirements that supersede procedural steps; the operator must stop and notify supervision before taking any action that would violate them.

Question 3

In human performance, 'attention capture' (also called fixation) most commonly causes workers to:

Accepted Answer

Focus exclusively on one aspect of a task while missing broader plant conditions

Answer

Attention capture causes workers to fixate on one symptom or task element, creating tunnel vision that causes them to miss other significant changes in plant status.

Question 4

Which action BEST supports a strong nuclear safety culture regarding human performance?

Accepted Answer

Consistently applying human performance tools even when time is available and risk seems low

Answer

Consistent application of human performance tools—regardless of apparent risk—builds the habit and discipline that prevents errors in genuinely high-risk situations.

Question 5

The concept of 'error-likely situations' in NANTeL human performance training refers to:

Accepted Answer

Specific combinations of task, worker, and environmental conditions that predictably increase error risk

Answer

Error-likely situations are recognized combinations of precursors—task complexity, environmental stressors, and individual factors—that statistically predict higher error rates.

(NANTeL) National Academy for Nuclear Training e-Learning Practice Test

(NANTeL) National Academy for Nuclear Training e-Learning Practice Test

NANTeL Human Performance Principles 5