CIEE Task Analysis & Job Demands 5

Question 1

A CIEE conducting a cognitive task analysis (CTA) wants to uncover the mental processes an experienced operator uses during equipment troubleshooting. The BEST CTA method for this goal is:

Accepted Answer

Think-aloud protocol during a simulated fault scenario

Answer

Think-aloud protocols require workers to verbalize their reasoning in real time, making implicit cognitive processes explicit and observable during complex problem-solving tasks.

Question 2

Which of the following best describes 'duty cycle' as used in ergonomic task analysis?

Accepted Answer

The proportion of time a muscle is actively loaded versus the total task cycle time

Answer

Duty cycle expresses the ratio of exertion time to total cycle time; a higher duty cycle means less recovery within the cycle, increasing cumulative loading.

Question 3

A physical demands analysis documents that a task requires 'frequent' handling. According to US DOL definitions, 'frequent' means the activity occurs:

Accepted Answer

34–66% of the work shift

Answer

DOL defines 'frequent' as occurring 34–66% of the workday, with 'occasional' at 1–33% and 'constant' at 67–100%.

Question 4

An ergonomist identifies that a stamping press operator must reach into the die area as part of normal operation. Under task analysis for hazard control hierarchy, which intervention should be considered FIRST?

Accepted Answer

Eliminate the reach-in requirement through press redesign or automation

Answer

The hierarchy of controls places elimination of the hazard at the top; redesigning the press or automating part loading removes the need for the hazardous reach entirely.

Question 5

In the context of a biomechanical task analysis, 'moment arm' refers to:

Accepted Answer

The perpendicular distance from the joint center to the line of force application

Answer

A moment arm is the perpendicular distance between the axis of rotation (joint center) and the line along which a force acts, determining the torque imposed on the joint.

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

CIEE Task Analysis & Job Demands 5