CHMM Occupational Health And Safety 3

Question 1

A confined space is classified as 'permit-required' under OSHA 29 CFR 1910.146 if it has which characteristic?

Accepted Answer

A space with a potential for a hazardous atmosphere or engulfment hazard

Answer

A permit-required confined space has one or more serious hazards: hazardous atmosphere, engulfment risk, converging walls, or any recognized serious safety/health hazard.

Question 2

When conducting industrial hygiene air monitoring for a volatile hazardous substance, which sampling method collects a grab sample?

Accepted Answer

Evacuated canister or Tedlar bag filled instantaneously

Answer

Grab samples capture air instantaneously using evacuated canisters or Tedlar bags and represent conditions at a single point in time.

Question 3

What is the primary purpose of a Job Hazard Analysis (JHA) in occupational health and safety?

Accepted Answer

To systematically identify hazards associated with each step of a job task

Answer

A JHA breaks a job into steps, identifies hazards at each step, and recommends controls before work begins — a proactive prevention tool.

Question 4

Under the hierarchy of controls, which control measure is considered MOST effective for reducing occupational hazards?

Accepted Answer

Elimination of the hazard

Answer

Elimination — physically removing the hazard — is the most effective control because it prevents exposure entirely rather than managing it.

Question 5

NIOSH recommends what maximum recommended weight for a manual lifting task under ideal conditions (optimal frequency, coupling, and geometry)?

Accepted Answer

23 kg (51 lbs)

Answer

NIOSH's lifting equation sets 23 kg (51 lbs) as the recommended weight limit (RWL) under ideal conditions, with multipliers reducing this for adverse conditions.

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM Occupational Health And Safety 3