CIH CIH Ergonomics & Human Factors 2

Question 1

Which observational ergonomic assessment tool uses a body posture coding system to rate the risk of upper-extremity disorders?

Accepted Answer

RULA (Rapid Upper Limb Assessment)

Answer

NIOSH Lifting Equation

Answer

OSHA 300 Log analysis

Answer

ACGIH TLV for hand activity

Question 2

The ACGIH TLV for Hand Activity Level (HAL) uses what two variables to determine acceptable hand-intensive work limits?

Accepted Answer

Hand Activity Level and peak hand force

Answer

Force and temperature

Answer

Frequency and duration

Answer

Weight lifted and distance traveled

Question 3

What is the primary goal of an ergonomic job hazard analysis (JHA)?

Accepted Answer

Identify and control ergonomic risk factors before injury occurs

Answer

Calculate PELs for chemical exposures

Answer

Determine workers' compensation premium rates

Answer

Measure noise dose for hearing conservation

Question 4

Whole-body vibration (WBV) is primarily associated with which occupational setting?

Accepted Answer

Operators of vehicles and heavy mobile equipment

Answer

Office workers at standing desks

Answer

Assembly line workers with repetitive hand tasks

Answer

Construction workers using hand drills

Question 5

Which hierarchy of controls is MOST preferred when addressing an identified ergonomic hazard?

Accepted Answer

Engineering controls such as redesigning the workstation

Answer

Administrative controls such as job rotation

Answer

Personal protective equipment

Answer

Training workers on proper lifting technique

Question 6

Awkward postures that increase musculoskeletal injury risk include working with the wrist in what position?

Accepted Answer

Radial or ulnar deviation exceeding 15°

Answer

Neutral (straight alignment)

Answer

Fully extended elbow at side

Answer

Shoulder at 30° flexion with elbow supported