S95 Inspection and Testing Procedures 4

Question 1

When testing a mass notification system (MNS) integrated with a fire alarm system, the test must verify that the MNS takes priority over:

Accepted Answer

Fire alarm evacuation signals when activated by an authorized operator

Answer

Per NFPA 72, an MNS activated by an authorized operator must be able to override fire alarm evacuation signals when required.

Question 2

A single-station smoke alarm installed in a dwelling is considered part of a fire alarm system and must be tested per NFPA 72 when:

Accepted Answer

It is interconnected with other detectors and connected to the building's fire alarm system

Answer

Single-station alarms become part of the fire alarm system when interconnected and tied to the building's FACP, at which point NFPA 72 testing requirements apply.

Question 3

What is the maximum voltage drop allowed on a fire alarm notification appliance circuit (NAC) under full alarm load?

Accepted Answer

10%

Answer

NFPA 72 permits a maximum voltage drop of 10% on notification appliance circuits to ensure proper operation of horns and strobes.

Question 4

During a functional test, a strobe light on a notification appliance does not flash. The first diagnostic step should be to:

Accepted Answer

Check the NAC circuit voltage at the appliance terminals under alarm load

Answer

Verifying circuit voltage under load is the first step because insufficient voltage is the most common cause of strobe failure.

Question 5

According to NFPA 72, records of inspections, testing, and maintenance must be retained for a minimum of:

Accepted Answer

The period between inspections (not less than 1 year)

Answer

NFPA 72 requires inspection and testing records be kept for at least the period between tests, with a minimum of 1 year.

(S95) Supervision of Fire Alarm System Practice Test

(S95) Supervision of Fire Alarm System Practice Test

S95 Inspection and Testing Procedures 4