NANTeL - National Academy for Nuclear Training e-Learning Human Performance Principles Questions and Answers

Question 1

An operator is tasked with closing a critical valve in the plant.
Before manipulating the valve, the operator pauses, points to the valve's label, and verbalizes its designation and the intended action.
After closing the valve, the operator checks a downstream flow meter to ensure the expected result occurred.
Which human performance tool is being demonstrated?

Accepted Answer

S-T-A-R (Stop, Think, Act, Review)

Answer

Three-Way Communication

Answer

Peer Check

Answer

Questioning Attitude

Question 2

Which of the following is the best example of a latent organizational weakness that could lead to a human performance error?

Accepted Answer

A confusingly written procedure for a complex task has not been updated in over five years.

Answer

An operator misreads a gauge due to poor lighting in the area.

Answer

A technician accidentally drops a tool while working at height.

Answer

A worker forgets to wear their safety glasses for a routine task.

Question 3

During a pre-job brief for a high-risk maintenance activity, what is the most critical objective?

Accepted Answer

To ensure all participants understand the scope, hazards, critical steps, and contingencies.

Answer

To ensure all necessary work permits have been signed.

Answer

To have all team members introduce themselves and state their qualifications.

Answer

To rush through the brief so the work can start on schedule.

Question 4

A technician performing a surveillance test notices a pressure reading that, while within its acceptable band, is significantly different from the values recorded on previous shifts. Instead of just documenting the value, the technician stops and notifies the control room to question the anomaly. This behavior is a direct application of which human performance principle?

Accepted Answer

Questioning Attitude

Answer

Conservative Decision-Making

Answer

Procedure Adherence

Answer

Peer Checking

Question 5

An operator provides a directive to a field operator: 'Start pump 1B.' The field operator responds, 'You want me to start pump 1B.' The control room operator then says, 'That is correct.' This exchange is a complete example of which human performance tool?

Accepted Answer

Three-Way Communication

Answer

S-T-A-R

Answer

Shift Turnover

Answer

Pre-Job Brief

Question 6

Time pressure, high workload, vague guidance, and a distracting environment are all examples of what?

Accepted Answer

Error Traps

Answer

Latent Errors

Answer

Active Failures

Answer

Organizational Values