CEA Industrial Ergonomics 2

Question 1

Which NIOSH equation variable accounts for the horizontal distance of the load from the worker's body?

Accepted Answer

Horizontal Multiplier (HM)

Answer

The Horizontal Multiplier (HM) in the NIOSH Lifting Equation penalizes lifts where the load is held far from the body, increasing spine loading.

Question 2

In a push/pull task, which force measurement is most critical for ergonomic evaluation?

Accepted Answer

Initial peak force and sustained force

Answer

Both the initial peak force (to break inertia) and sustained force (to keep the load moving) must be measured and compared against limits.

Question 3

What does the term 'anthropometric variability' mean in workstation design?

Accepted Answer

Natural range of human body dimensions across a population

Answer

Anthropometric variability refers to the natural differences in body dimensions (height, reach, etc.) across a worker population that must be accommodated in design.

Question 4

A conveyor belt height that is too low for assembly work primarily causes which ergonomic risk?

Accepted Answer

Prolonged trunk flexion

Answer

A conveyor set too low forces workers to bend forward repeatedly or sustain trunk flexion, increasing lumbar spine loading.

Question 5

Which industrial scenario BEST illustrates a 'pinch grip' hazard?

Accepted Answer

Holding a thin sheet metal blank between thumb and fingers

Answer

A pinch grip occurs when thin objects are held between the fingertips and thumb, generating high tendon forces relative to power grip.

(CEA) Certified Ergonomics Associate Practice Test

(CEA) Certified Ergonomics Associate Practice Test

CEA Industrial Ergonomics 2