FST Fire Detection & Suppression Systems 3

Question 1

In a clean agent suppression system using FK-5-1-12, the system is designed to suppress fire primarily by:

Accepted Answer

Absorbing heat and interrupting the chemical chain reaction

Answer

FK-5-1-12 (Novec 1230) suppresses fire chiefly through heat absorption and chemical chain reaction interruption, with minimal oxygen reduction.

Question 2

What is the minimum number of audible notification appliances required on each floor of a building per NFPA 72?

Accepted Answer

At least one per floor such that the alarm is audible throughout

Answer

NFPA 72 requires that audible notification appliances be sufficient to produce the required sound pressure levels throughout the entire floor.

Question 3

Which suppression agent is most appropriate for protecting a computer server room where equipment damage from agent residue is a concern?

Accepted Answer

Halon 1301 replacement (clean agent)

Answer

Clean agents leave no residue after discharge, making them ideal for protecting sensitive electronic equipment like server rooms.

Question 4

A deluge sprinkler system is best suited for which type of hazard?

Accepted Answer

High-hazard areas where rapid fire spread is expected

Answer

Deluge systems have open sprinkler heads and discharge water simultaneously over the entire protected area, making them ideal for high-hazard occupancies with fast fire spread potential.

Question 5

When a duct smoke detector activates, what is its primary intended action?

Accepted Answer

Shut down the HVAC system to prevent smoke spread

Answer

Duct smoke detectors are primarily designed to shut down HVAC systems upon detecting smoke to prevent the spread of smoke and toxic gases through the ventilation system.

(FST) Fire Safety Technician Certification Practice Test

(FST) Fire Safety Technician Certification Practice Test

FST Fire Detection & Suppression Systems 3