CIEE Task Analysis & Job Demands 4

Question 1

An ergonomist is analyzing a task where the worker must twist the trunk 45° while lifting. In the NIOSH Revised Lifting Equation, this is addressed by the:

Accepted Answer

Asymmetry Multiplier (AM)

Answer

The Asymmetry Multiplier penalizes lifts that deviate from the sagittal plane, accounting for trunk rotation (asymmetry angle) during the task.

Question 2

Which physical demand category in the US Department of Labor classification system requires the ability to lift up to 100 lbs occasionally and 50 lbs frequently?

Accepted Answer

Very Heavy

Answer

DOL classifies 'Very Heavy' work as lifting over 100 lbs occasionally and over 50 lbs frequently, distinguishing it from the 'Heavy' category (50 lbs occasional, 25 lbs frequent).

Question 3

During a task analysis, a CIEE finds that workers handle loads with only fingertip contact and no wrap of the hand. The NIOSH Coupling Multiplier value assigned for this grip type is:

Accepted Answer

0.90 (poor coupling)

Answer

Fingertip grip with no handle wrap is classified as 'poor' coupling in NIOSH guidelines, receiving a coupling multiplier of 0.90 which reduces the RWL.

Question 4

A job safety analysis (JSA) differs from a task analysis primarily because the JSA focuses on:

Accepted Answer

Identifying hazards and preventive measures for each task step

Answer

A JSA systematically identifies hazards associated with each step of a job and prescribes controls, whereas task analysis broadly documents how a job is performed.

Question 5

In the context of a physical demands analysis (PDA), 'positional tolerance' refers to:

Accepted Answer

The duration a worker can maintain a given posture without rest

Answer

Positional tolerance measures how long a worker can sustain a specific body position (e.g., kneeling, reaching overhead) before requiring relief, which is critical for matching job demands to worker capability.

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

CIEE Task Analysis & Job Demands 4