ASP Workplace Ergonomics 4

Question 1

Which anthropometric measurement is most critical when designing a fixed-height workstation for a standing worker population?

Accepted Answer

5th percentile elbow height to accommodate shorter workers

Answer

Fixed-height standing workstations should be designed to accommodate shorter workers (5th percentile elbow height) since taller workers can more easily adapt than shorter workers who must overreach.

Question 2

A worker assembling small electronic components reports discomfort after 2 hours. Which ergonomic principle is MOST likely being violated?

Accepted Answer

Adequate lighting for visual task demands

Answer

Fine assembly tasks require high visual acuity, and insufficient lighting forces workers into awkward forward-leaning postures and increases eye strain, causing early fatigue.

Question 3

The NIOSH Lifting Equation recommends a maximum Recommended Weight Limit (RWL) under ideal conditions. What is the load constant (LC) used in the equation?

Accepted Answer

51 lbs (23 kg)

Answer

The NIOSH Lifting Equation uses a load constant of 51 lbs (23 kg) under ideal conditions, which is then multiplied by various task multipliers to yield the RWL.

Question 4

Which of the following best describes the concept of 'static loading' in ergonomics?

Accepted Answer

Maintaining a body position or exerting force for prolonged periods without movement

Answer

Static loading occurs when muscles contract continuously without movement, reducing blood flow and accelerating fatigue—a major ergonomic risk factor.

Question 5

Under OSHA's General Duty Clause (Section 5(a)(1)), employers can be cited for ergonomic hazards when which condition is met?

Accepted Answer

The hazard is recognized and causing or likely to cause serious harm, and a feasible abatement exists

Answer

The General Duty Clause applies when a recognized hazard causes or is likely to cause serious harm and a feasible means to abate it exists, even without a specific standard.

(ASP) Associate Safety Professional Practice Test

(ASP) Associate Safety Professional Practice Test

ASP Workplace Ergonomics 4