FST Fire Detection & Suppression Systems 4

Question 1

A rate-of-rise heat detector will activate when:

Accepted Answer

Temperature rises more than 12-15°F per minute

Answer

Rate-of-rise detectors activate when temperature increases at a rate exceeding approximately 12-15°F per minute, regardless of the actual temperature reached.

Question 2

In a zoned fire alarm system, what is the primary benefit of dividing a building into multiple zones?

Accepted Answer

It allows first responders to quickly locate the area of alarm

Answer

Zoning allows the FACP to indicate which specific area of the building has activated, helping responders quickly locate and respond to the emergency.

Question 3

What is the primary hazard of using a CO2 extinguisher in a small, enclosed space?

Accepted Answer

It may displace enough oxygen to cause asphyxiation

Answer

CO2 suppresses fire by displacing oxygen, and in a confined space this oxygen displacement can reach dangerous levels that cause asphyxiation for occupants.

Question 4

Which type of sprinkler head responds fastest in a fire and is designed to protect high-value equipment?

Accepted Answer

Quick response (QR) sprinkler

Answer

Quick response (QR) sprinklers have a smaller thermal element and activate faster, reducing heat, smoke, and fire spread in the critical early stages.

Question 5

NFPA 25 applies to which fire protection activity?

Accepted Answer

Inspection, testing, and maintenance of water-based fire protection systems

Answer

NFPA 25 is the Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, covering ongoing ITM requirements after installation.

(FST) Fire Safety Technician Certification Practice Test

(FST) Fire Safety Technician Certification Practice Test

FST Fire Detection & Suppression Systems 4