S95 Fire Alarm System Operation 3

Question 1

When a fire alarm control unit receives a ground fault indication, the supervisor should FIRST:

Accepted Answer

Notify the authority having jurisdiction (AHJ) and arrange for prompt repair

Answer

A ground fault is a trouble condition that must be reported to the AHJ and corrected promptly, as it can impair system reliability.

Question 2

Rate-of-rise heat detectors respond to which fire condition?

Accepted Answer

A rapid increase in temperature over a short time period

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 3

A fire alarm system with a 'positive alarm sequence' (PAS) feature allows:

Accepted Answer

Trained personnel up to 3 minutes to investigate before general evacuation signals sound

Answer

Under NFPA 72, PAS gives trained staff up to 3 minutes (180 seconds) to acknowledge and investigate before general notification is initiated.

Question 4

An addressable fire alarm system differs from a conventional system in that it:

Accepted Answer

Can identify the specific device in alarm or trouble by its unique address

Answer

Addressable systems assign each device a unique identifier, allowing the control panel to pinpoint exactly which device is reporting an alarm or fault.

Question 5

Which of the following is the CORRECT action when a fire alarm system is taken out of service for maintenance exceeding four hours?

Accepted Answer

Provide a fire watch and notify the AHJ and supervising station

Answer

NFPA 72 and most fire codes require a fire watch when a fire alarm system is impaired, along with notification to the AHJ and supervising station.

(S95) Supervision of Fire Alarm System Practice Test

(S95) Supervision of Fire Alarm System Practice Test

S95 Fire Alarm System Operation 3