NANTeL Industrial and Fire Safety 4

Question 1

In industrial fall protection, which type of system allows a worker to move freely but stops a fall before the worker hits a lower level?

Accepted Answer

Personal fall arrest system

Answer

A personal fall arrest system (PFAS) arrests a fall in progress, stopping the worker before impact with the surface below.

Question 2

What is the maximum allowable free-fall distance for a personal fall arrest system under OSHA regulations?

Accepted Answer

6 feet

Answer

OSHA limits free fall to 6 feet and requires total fall to be arrested so the worker does not contact a lower level.

Question 3

Which respiratory protection device provides the highest level of protection against airborne contaminants in a nuclear industrial setting?

Accepted Answer

Self-contained breathing apparatus (SCBA)

Answer

SCBA supplies its own breathing air from a compressed air cylinder, providing protection independent of ambient air quality.

Question 4

During a fire watch, how soon after hot work is completed must a fire watch remain in the area per NFPA 51B?

Accepted Answer

30 minutes

Answer

NFPA 51B requires a fire watch for at least 30 minutes after hot work is completed to detect smoldering fires.

Question 5

In the hierarchy of hazard controls, which control method is considered MOST effective?

Accepted Answer

Elimination of the hazard

Answer

Elimination removes the hazard entirely and is the most effective control because it leaves no residual risk to manage.

(NANTeL) National Academy for Nuclear Training e-Learning Practice Test