MHC Ergonomics & Human Factors

Question 1

What is the maximum recommended single-lift weight for an average adult male worker according to NIOSH guidelines?

Accepted Answer

51 lbs

Answer

25 lbs

Answer

75 lbs

Answer

100 lbs

Question 2

Which of the following best describes a 'neutral posture' in material handling ergonomics?

Accepted Answer

Keeping joints in their natural, mid-range position

Answer

Bending at the waist to reach a load

Answer

Extending arms fully overhead to stack items

Answer

Twisting the torso while carrying a load

Question 3

Which type of musculoskeletal disorder (MSD) is most commonly associated with repetitive heavy lifting in warehouse environments?

Accepted Answer

Lower back injury

Answer

Carpal tunnel syndrome

Answer

Rotator cuff tear

Answer

Tennis elbow

Question 4

When performing a team lift, which action is most important to coordinate before moving the load?

Accepted Answer

Establishing a verbal signal to lift and move simultaneously

Answer

Deciding who will carry the most weight

Answer

Selecting the fastest worker to lead

Answer

Wearing matching personal protective equipment

Question 5

Which ergonomic control measure is considered the most effective for reducing manual material handling hazards?

Accepted Answer

Implementing engineering controls to eliminate the hazard

Answer

Providing back belts to workers

Answer

Rotating workers between heavy tasks

Answer

Training workers on proper lifting technique

Question 6

What does the NIOSH Lifting Equation's Recommended Weight Limit (RWL) help determine?

Accepted Answer

The safe load weight for a specific lifting task and conditions

Answer

The maximum speed at which a load can be transported by conveyor

Answer

The load capacity of a forklift under ideal conditions

Answer

The minimum number of workers required for a team lift

Question 7

Which factor does NOT directly affect the NIOSH Recommended Weight Limit (RWL) calculation?

Accepted Answer

Worker's age and seniority

Answer

Horizontal distance of the load from the body

Answer

Vertical height of the lift

Answer

Frequency of lifting per minute