CES Manual Material Handling & Industrial Ergonomics

Question 1

In the NIOSH Revised Lifting Equation (1994), what is the Recommended Weight Limit (RWL) used to calculate?

Accepted Answer

A weight limit specific to the task conditions that protects most healthy workers

Answer

Maximum force a worker should ever exert

Answer

The legal weight limit per OSHA standards

Answer

Average weight lifted across a shift

Question 2

The Lifting Index (LI) is calculated as:

Accepted Answer

Actual load weight divided by RWL

Answer

RWL divided by actual load weight

Answer

Load weight multiplied by frequency

Answer

Horizontal distance divided by vertical height

Question 3

Which factor in the NIOSH Lifting Equation penalizes lifts that involve significant twisting of the torso?

Accepted Answer

Asymmetry Multiplier (AM)

Answer

Horizontal Multiplier (HM)

Answer

Frequency Multiplier (FM)

Answer

Coupling Multiplier (CM)

Question 4

What is the primary purpose of a 'team lift' protocol?

Accepted Answer

To distribute the load so no single worker exceeds individual capacity

Answer

To increase speed of material handling

Answer

To comply with union agreements

Answer

To reduce the number of lifts per day

Question 5

Which pushing/pulling measurement tool is most commonly used to assess force limits in industrial settings?

Accepted Answer

Dynamometer or force gauge

Answer

Goniometer

Answer

Inclinometer

Answer

Borg RPE scale

Question 6

Conveyor height for repetitive assembly tasks should ideally be set at:

Accepted Answer

Elbow height of the standing worker

Answer

Floor level

Answer

Knee height

Answer

Shoulder height