NFPA NFPA 72 Fire Alarm Systems 3

Question 1

Under NFPA 72, what is the minimum visible notification appliance (strobe) candela rating for a public area with 16-foot ceilings?

Accepted Answer

75 cd

Answer

15 cd

Answer

30 cd

Answer

110 cd

Question 2

According to NFPA 72, which initiating device is required in the air ducts of HVAC systems serving multiple floors?

Accepted Answer

Duct smoke detector

Answer

Heat detector

Answer

Sprinkler flow switch

Answer

Carbon monoxide detector

Question 3

Under NFPA 72, what is the purpose of a Class A wiring style for initiating device circuits?

Accepted Answer

Allow continued operation after a single open or ground fault

Answer

Reduce installation cost

Answer

Permit wireless operation

Answer

Support higher device counts

Question 4

According to NFPA 72, what information must be displayed on a fire alarm control unit annunciator?

Accepted Answer

Zone or device location of alarm, supervisory, and trouble conditions

Answer

Time of last alarm only

Answer

Building owner contact information

Answer

Suppression system type

Question 5

Under NFPA 72, smoke detectors must be located at minimum how far from a supply air diffuser?

Accepted Answer

3 feet

Answer

1 foot

Answer

5 feet

Answer

10 feet

Question 6

According to NFPA 72, when a fire alarm system is out of service for more than how many hours must the authority having jurisdiction be notified?

Accepted Answer

24 hours

Answer

2 hours

Answer

4 hours

Answer

8 hours