FST Emergency Response Procedures & Safety Protocols 5

Question 1

Which condition describes a backdraft event?

Accepted Answer

Explosive ignition when oxygen is introduced to an oxygen-depleted smoldering fire

Answer

Backdraft occurs when oxygen is suddenly introduced — such as by opening a door — to a smoldering, oxygen-depleted fire, causing rapid explosive combustion.

Question 2

Under NFPA 72, audible fire alarm notification appliances in occupiable spaces must produce a sound level of at least how many dB above ambient noise?

Accepted Answer

15 dB

Answer

NFPA 72 requires audible notification appliances to produce a sound level at least 15 dB above the average ambient sound level to ensure occupants can hear the alarm.

Question 3

What is the correct method for controlling a flammable liquid (Class B) fire with a dry chemical extinguisher?

Accepted Answer

Sweep the agent from side to side across the base of the fire

Answer

For Class B fires, the correct technique is to sweep the dry chemical agent from side to side at the base of the flames to knock down and smother the fire.

Question 4

An Area of Rescue Assistance (ARA) is required by the IBC primarily for:

Accepted Answer

Providing a safe waiting location for mobility-impaired occupants unable to use stairs

Answer

An Area of Rescue Assistance is a fire-rated space near a stairwell where mobility-impaired occupants can wait safely and communicate with emergency responders.

Question 5

Which protocol requires employers to maintain an accurate count of personnel after emergency evacuation?

Accepted Answer

OSHA 29 CFR 1910.38 Emergency Action Plan

Answer

OSHA 29 CFR 1910.38 requires emergency action plans to include procedures for accounting for all employees after evacuation is completed.

(FST) Fire Safety Technician Certification Practice Test

(FST) Fire Safety Technician Certification Practice Test

FST Emergency Response Procedures & Safety Protocols 5