F80 F80 Code Requirements 3

Question 1

What is the maximum allowable voltage drop on a fire alarm initiating device circuit (IDC) under NFPA 72?

Accepted Answer

2 volts

Answer

1 volt

Answer

3 volts

Answer

5 volts

Question 2

According to NFPA 72, in which occupancy type must all corridors be equipped with smoke detectors as a minimum requirement?

Accepted Answer

Health care occupancies

Answer

Assembly occupancies

Answer

Business occupancies

Answer

Mercantile occupancies

Question 3

Under NFPA 72, what is the required minimum wire gauge for a Class A fire alarm circuit?

Accepted Answer

18 AWG

Answer

16 AWG

Answer

14 AWG

Answer

12 AWG

Question 4

A Class B initiating device circuit (IDC) differs from a Class A IDC primarily because Class B circuits:

Accepted Answer

Require end-of-line resistors and do not provide fault detection beyond the first open

Answer

Operate at higher voltages

Answer

Must use shielded cable throughout

Answer

Support twice as many devices

Question 5

According to the F80 code framework, which document must be submitted to the Authority Having Jurisdiction (AHJ) before fire alarm system installation begins?

Accepted Answer

Shop drawings and specifications

Answer

Certificate of occupancy

Answer

Manufacturer's maintenance manual

Answer

Inspection and testing report

Question 6

NFPA 72 requires that the primary power supply for a fire alarm system be:

Accepted Answer

A dedicated branch circuit rated at 120V from the main electrical panel

Answer

Any available 120V circuit in the building

Answer

A UPS system with 72-hour capacity

Answer

Solar power with battery backup

Question 7

Under F80 code requirements, what must be done when a fire alarm system is out of service for more than 8 hours in a 24-hour period?

Accepted Answer

A fire watch must be established and the AHJ notified

Answer

The AHJ and the building owner must be notified only

Answer

The building must be immediately evacuated

Answer

A temporary sprinkler system must be installed