CEAS CEAS Ergonomic Interventions & Solutions 1

Question 1

In the hierarchy of ergonomic controls, which type of intervention is considered most effective?

Accepted Answer

Engineering controls (redesigning the task or workspace)

Answer

Engineering controls are most effective because they eliminate or reduce the hazard at the source rather than relying on worker behavior.

Question 2

What is the primary ergonomic benefit of a height-adjustable (sit-stand) workstation?

Accepted Answer

Allows posture variation, reducing static load on the spine and lower extremities

Answer

Sit-stand desks reduce prolonged static posture by enabling workers to alternate positions, distributing musculoskeletal load across different body regions.

Question 3

Which keyboard design feature most directly reduces ulnar deviation of the wrists?

Accepted Answer

Split or contoured keyboard design

Answer

Split and contoured keyboards position the hands in a more neutral orientation, reducing the inward bending (ulnar deviation) common with standard flat keyboards.

Question 4

What does an anti-fatigue mat primarily address in a standing workstation ergonomic intervention?

Accepted Answer

Reduces lower-limb fatigue and discomfort from prolonged static standing

Answer

Anti-fatigue mats encourage subtle micro-movements of the leg muscles, improving circulation and reducing fatigue during prolonged standing work.

Question 5

Which administrative ergonomic control is most commonly recommended to reduce repetitive strain exposure?

Accepted Answer

Task rotation among workers to vary muscle groups used

Answer

Task rotation distributes repetitive motion exposure across different muscle groups, reducing cumulative strain on any single body region.

CEAS - Certified Ergonomics Assessment Specialist Practice Test

CEAS - Certified Ergonomics Assessment Specialist Practice Test

CEAS CEAS Ergonomic Interventions & Solutions 1