CIEE Manual Material Handling Assessment 4

Question 1

Which psychophysical method asks workers to adjust load weight or force until they reach their maximum acceptable level for a given task?

Accepted Answer

Maximum Acceptable Weight of Lift (MAWL) method

Answer

The Maximum Acceptable Weight of Lift (MAWL) psychophysical method asks subjects to self-regulate load weight until reaching the heaviest they can handle without overexertion.

Question 2

When assessing a lowering task using the NIOSH lifting equation, the evaluator should:

Accepted Answer

Calculate the RWL at the origin (top) and destination (bottom) and use the more restrictive value

Answer

Both origin and destination RWLs must be computed for a lowering task, and the lower (more restrictive) value governs task acceptability.

Question 3

A job requires lifting 10 kg at a frequency of 12 lifts per minute for 8 hours. According to the NIOSH frequency multiplier (FM) table, what FM value applies?

Accepted Answer

FM = 0.00

Answer

At 12 lifts/min over an 8-hour duration, the FM value drops to 0.00, meaning the task essentially exceeds physiological capacity regardless of other parameters.

Question 4

Which leading ergonomic indicator would most suggest unacceptable MMH risk BEFORE a musculoskeletal injury occurs?

Accepted Answer

Workers reporting perceived exertion ratings above 13 on the Borg RPE scale during routine tasks

Answer

Borg RPE scores consistently above 13 (somewhat hard) during routine tasks signal physiological strain and serve as a leading indicator before injuries are recorded.

Question 5

Which ergonomic tool is specifically designed to assess whole-body vibration exposure during manual material handling tasks involving powered industrial trucks?

Accepted Answer

ISO 2631-1 standard measurement protocol

Answer

ISO 2631-1 provides the standardized methodology for measuring and evaluating whole-body vibration (WBV) exposure in workers operating vehicles like forklifts.

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

CIEE Manual Material Handling Assessment 4