CSS CSS - Certified Safety Supervisor Ergonomics and Confined Space Safety Questions and Answers 2

Question 1

A Lifting Index (LI) value greater than what number indicates a high risk of work-related musculoskeletal disorders according to NIOSH?

Accepted Answer

2.0

Answer

A Lifting Index above 3.0 is considered high risk by NIOSH; values above 1.0 represent some elevated risk, but LI > 3.0 demands immediate corrective action.

Question 2

When testing a confined space atmosphere before entry, what is the correct testing sequence?

Accepted Answer

Oxygen, then flammability, then toxics

Answer

OSHA recommends testing oxygen first because flammability sensors are inaccurate in oxygen-deficient conditions, then checking flammability, then toxic contaminants.

Question 3

Which ergonomic intervention is considered an engineering control for reducing musculoskeletal injury risk?

Accepted Answer

Installing a height-adjustable work surface

Answer

Installing height-adjustable work surfaces is an engineering control that physically modifies the work environment to reduce ergonomic risk.

Question 4

Under OSHA 1910.146, who is authorized to cancel a confined space entry permit?

Accepted Answer

The entry supervisor

Answer

The entry supervisor has authority to cancel or suspend the permit when unsafe conditions arise or upon completion of entry.

Question 5

Whole-body vibration exposure is most commonly associated with which musculoskeletal condition?

Accepted Answer

Lower back disorders

Answer

Whole-body vibration transmitted through seats or floors of vehicles is a recognized risk factor for lower back pain and intervertebral disc disorders.

(CSS) Certified Safety Supervisor Practice Test

(CSS) Certified Safety Supervisor Practice Test

CSS CSS - Certified Safety Supervisor Ergonomics and Confined Space Safety Questions and Answers 2