Certified Safety Professional Exam Ergonomics and Human Factors 1

Question 1

Which risk factor is most commonly associated with the development of work-related musculoskeletal disorders (WMSDs)?

Accepted Answer

Repetitive motion, forceful exertion, and awkward postures

Answer

High illuminance levels

Answer

Excessive noise exposure above 85 dBA

Answer

Prolonged exposure to vibration above 100 Hz

Question 2

What ergonomic tool does NIOSH provide to assess manual material handling tasks and determine a recommended weight limit (RWL)?

Accepted Answer

The NIOSH Lifting Equation

Answer

Rapid Upper Limb Assessment (RULA)

Answer

Rapid Entire Body Assessment (REBA)

Answer

Strain Index (SI)

Question 3

What does a Lifting Index (LI) greater than 1.0 indicate when using the NIOSH Lifting Equation?

Accepted Answer

The task poses an increased risk of low back injury for some workers

Answer

The task is within safe lifting limits

Answer

The task is classified as light work

Answer

Mechanical assists are legally required

Question 4

Which type of vibration is associated with Raynaud's phenomenon (vibration white finger) in workers?

Accepted Answer

Hand-arm vibration (HAV)

Answer

Whole-body vibration (WBV)

Answer

Rotational vibration

Answer

Infrasonic vibration

Question 5

In ergonomic workstation design, what is the recommended monitor height to reduce neck strain?

Accepted Answer

Monitor top at eye level or slightly below

Answer

Monitor centered 10 inches above eye level

Answer

Monitor at desktop level

Answer

Monitor top 12 inches above the crown of the head

Question 6

What is the primary goal of participatory ergonomics programs?

Accepted Answer

To involve employees in identifying hazards and designing ergonomic solutions

Answer

To replace all workers with automated machinery

Answer

To mandate PPE use for all physical tasks

Answer

To conduct annual physical fitness testing