SHS Ergonomics & Musculoskeletal Disorders

Question 1

What is ergonomics primarily concerned with?

Accepted Answer

Fitting the work environment to the worker to reduce injury risk

Answer

Ergonomics focuses on designing work systems, tools, and environments that fit the worker's capabilities and limitations to minimize injury and improve efficiency.

Question 2

Which of the following is a primary risk factor for work-related musculoskeletal disorders (WMSDs)?

Accepted Answer

Repetitive motion performed over extended periods

Answer

Repetitive motion is a primary ergonomic risk factor that causes cumulative stress on muscles, tendons, and nerves, leading to WMSDs.

Question 3

According to the Revised NIOSH Lifting Equation, which variable is used to evaluate the horizontal distance of a load from the worker's body?

Accepted Answer

Horizontal distance from the load to the worker's body

Answer

The horizontal distance from the worker's body to the load is a critical variable in the NIOSH Lifting Equation, as greater horizontal distance increases spinal stress.

Question 4

What term describes the joint position where the least stress is placed on tendons, muscles, and nerves?

Accepted Answer

Neutral posture

Answer

Neutral posture is the position where joints are naturally aligned, minimizing stress on muscles, tendons, and nerves.

Question 5

Which of the following best describes 'contact stress' as an ergonomic risk factor?

Accepted Answer

Pressure on soft tissue from a hard or sharp surface edge

Answer

Contact stress occurs when body parts press against hard or sharp surfaces, compressing tissues and potentially restricting blood flow or nerve function.

(SHS) Safety and Health Specialist Certificate Practice Test

(SHS) Safety and Health Specialist Certificate Practice Test

SHS Ergonomics & Musculoskeletal Disorders