CIEE Manual Material Handling Assessment 5

Question 1

Which scenario would cause the asymmetric multiplier (AM) in the NIOSH lifting equation to equal 1.0?

Accepted Answer

The lift is symmetric — the worker faces the load directly with no trunk rotation

Answer

AM = 1 – (0.0032 × A), so when the asymmetry angle A = 0 degrees (symmetric lift), AM = 1.0, meaning no penalty is applied.

Question 2

An ergonomic assessment reveals workers are lifting 18 kg pallets from the floor repeatedly. Which administrative control would be LEAST effective as a standalone intervention?

Accepted Answer

Providing back-safety training to workers on proper lifting technique

Answer

Back safety training alone has limited effectiveness as an intervention because it does not change the physical demands or task design causing the hazard.

Question 3

When using the Revised Strain Index (RSI) to evaluate a manual material handling task, the tool is MOST appropriate for assessing risk of injury to which body region?

Accepted Answer

Distal upper extremity (hand, wrist, forearm)

Answer

The Revised Strain Index was developed specifically to predict distal upper extremity disorders, including carpal tunnel syndrome and tendinitis of the hand and wrist.

Question 4

During a MMH assessment, you observe that a worker's Lifting Index is 2.4 for a non-routine lift performed once per hour. The appropriate recommended action is to:

Accepted Answer

Re-engineer the task immediately as an LI above 2.0 indicates substantial injury risk for most workers

Answer

An LI above 2.0 indicates a significantly elevated injury risk requiring prompt engineering controls to reduce the LI below 1.0.

Question 5

Which condition would lead an ergonomic evaluator to classify coupling as 'poor' under the NIOSH lifting equation criteria?

Accepted Answer

The worker must wrap fingers under the load because there are no handles or hand-holds

Answer

Poor coupling is assigned when there are no handles and the worker must finger-wrap or support the load from below, resulting in a coupling multiplier (CM) of 0.90.

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

CIEE Manual Material Handling Assessment 5