CHST - Construction Health and Safety Technician Fall Protection and Prevention Questions and Answers Flashcards

Which hierarchy of controls is MOST preferred when addressing a fall hazard on a construction site?

Answer: Elimination or substitution of the hazard

The hierarchy of controls places elimination or substitution at the top, meaning redesigning the work to remove the fall hazard is always preferable.

Skylights and roof openings must be guarded when they present a fall hazard. What is the minimum guardrail height required around such openings under OSHA 1926.502?

Answer: 42 inches

OSHA 1926.502(b) requires guardrail systems to be 42 inches (plus or minus 3 inches) in height.

A floor hole cover must be capable of supporting at least how many times the maximum intended load of workers, equipment, and materials?

Answer: 2 times

OSHA requires floor hole covers to support at least twice the maximum intended load to provide an adequate safety factor.

When conducting a Job Hazard Analysis (JHA) for fall prevention, which step should be performed FIRST?

Answer: Identify all potential fall hazards in each task step

A JHA begins with breaking down the job into tasks and identifying hazards before selecting controls or equipment.

Under OSHA 1926.502, what is the minimum mid-rail height for a guardrail system?

Answer: Between 21 and 31 inches above the walking surface

The mid-rail must be positioned at approximately the midpoint between the top edge of the guardrail (42 inches) and the walking surface, which is between 21 and 31 inches.

What must an employer provide if a PFAS cannot be used during steel erection and guardrails are not feasible?

Answer: Safety nets or a positioning device system

When conventional fall protection is infeasible in steel erection, safety nets or positioning device systems are the required alternative.

A fall protection plan that replaces conventional methods must be prepared and implemented by whom?

Answer: A qualified person

OSHA 1926.502(k) requires that a fall protection plan be prepared by a qualified person — someone with recognized training, knowledge, and experience in fall protection.