Firefighter Safety and Health 2

Question 1

Two firefighters must enter an Immediately Dangerous to Life or Health (IDLH) atmosphere. What does the OSHA "two-in, two-out" rule require?

Accepted Answer

At least two trained firefighters must remain outside and ready to perform rescue

Answer

The two-in, two-out rule requires at least two firefighters outside in standby/rescue capacity while two operate inside an IDLH atmosphere.

Question 2

What is the primary purpose of a Personal Alert Safety System (PASS) device?

Accepted Answer

To sound an alarm if a firefighter becomes motionless

Answer

A PASS device emits a loud alarm when a firefighter stops moving for a set period, helping locate a downed member.

Question 3

During overhaul, why should firefighters continue wearing SCBA even after visible flames are out?

Accepted Answer

Toxic gases like carbon monoxide and hydrogen cyanide remain present

Answer

Smoldering materials release invisible toxic gases such as CO and HCN, so respiratory protection is still needed during overhaul.

Question 4

What is rehabilitation ("rehab") at an emergency incident primarily designed to do?

Accepted Answer

Rest, rehydrate, and monitor firefighters to prevent injury and exhaustion

Answer

Rehab provides rest, hydration, nourishment, and medical monitoring to keep firefighters from overexertion and heat stress.

Question 5

A firefighter's low-air alarm on the SCBA activates during interior operations. What is the correct action?

Accepted Answer

Immediately begin exiting to a safe area with the crew

Answer

A low-air alarm signals the firefighter should exit promptly while breathable air remains.

Firefighter Practice Test