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

Immediately evacuate the building as a precautionary measure

Answer

Silence the trouble signal and document the condition for later service

Answer

Reset the control unit to clear the indication from the display

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

Absolute temperature exceeding a fixed threshold only

Answer

Visible combustion particles entering the sensing chamber

Answer

Infrared radiation emitted by open flame

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

The system to automatically reset after 3 minutes if no second device activates

Answer

The AHJ to remotely silence alarms from the supervising station

Answer

Automatic escalation to a mass notification system after 60 seconds

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

Uses wireless radio frequency devices instead of wired circuits

Answer

Does not require a central control unit to operate

Answer

Is limited to residential and small commercial occupancies

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

Post a sign at the main entrance indicating the system is offline

Answer

Disable only the affected zone and keep the rest of the system active

Answer

Document the outage in the log book and resume normal operations

Question 6

What does a 'trouble' signal on a fire alarm control unit indicate?

Accepted Answer

A fault in the system wiring, power supply, or component that requires service

Answer

An alarm condition has been detected and suppressed by staff

Answer

A supervisory condition in a sprinkler valve or water flow device

Answer

The panel is conducting its scheduled automatic self-test

Question 7

In the context of fire alarm systems, what is the function of an 'End-of-Line' (EOL) resistor?

Accepted Answer

It allows the control panel to supervise the circuit for open or short faults

Answer

It boosts signal strength over long wiring runs

Answer

It limits current to protect initiating devices from power surges

Answer

It terminates optical fiber cables used in addressable systems