Fire alarm test questions with complete
solutions 2025.
Smoke detectors installed in air duct systems are normally used to control spreading
smoke. TRUE/FALSE - ANSWER: TRUE
a smoke detector installed in an duct system is permitted to be used as a substitute for
area protection TRUE/FALSE - ANSWER: false
A smoke detector must be tested ______ - ANSWER: Annually
When installing a smoke detector for door release service and the depth of the wall
above the door is LESS THAN 24 inches ONE SMOKE DETECTOR IS REQUIRED ON
THE HIGHER SIDE OF THE PASSAGE ONLY (depth more than 24" requires 2 one on
each side of passage) - ANSWER: 24" requires 1 smoke detector on the higher side
2 smoke detectors if the depth is more than 24
Smoke detectors in elevator lobbies, hoist ways, or machine rooms can be used to
activate the elevator recall function. Other fire detectors may be permitted if ambient
conditions in those locations prohibit the use of smoke detectors TRUE/FALSE -
ANSWER: true
how long before a fire system is taken out of service should the AHJ be notified in
writing - ANSWER: 30 days
, the AHJ shall be notified if the fire system is out of service for _____ - ANSWER: 4 or
more hours within a 24 hour period
smoke detectors that use the light obscuration concept to detect smoke are called -
ANSWER: photoelectric detectors
where partitions extend to within 15% of the ceiling, the spaces by the partitions shall be
considered as separate rooms TRUE/FALSE - ANSWER: true
Smoke detectors mounted in the air duct of HVAC systems shall initiate either an alarm
signal or a supervisory signal at a constantly attended location TRUE/FALSE -
ANSWER: true
The sprinkler water flow alarm must activate within ____ seconds for a water flow equal
to or greater than that from the smallest orifice sprinkler in the sprinkler system -
ANSWER: 9 seconds
Air sampling smoke detector have a maximum air sample target time of _____ seconds
from the farthest port to the detector - ANSWER: 120 seconds
how far away should a smoke detector be placed from a bathroom that contains a
shower or tub? - ANSWER: 36 inches
how far away should an ionization detector without a silencing means be placed from a
cooking appliance or heat source? - ANSWER: 20 feet
how far away should an ionization detector with a silencing means be placed from a
cooking appliance or heat source? - ANSWER: 10 feet
how far away should a photoelectric detector be placed away from a cooking appliance
or heat source? - ANSWER: 6 feet
solutions 2025.
Smoke detectors installed in air duct systems are normally used to control spreading
smoke. TRUE/FALSE - ANSWER: TRUE
a smoke detector installed in an duct system is permitted to be used as a substitute for
area protection TRUE/FALSE - ANSWER: false
A smoke detector must be tested ______ - ANSWER: Annually
When installing a smoke detector for door release service and the depth of the wall
above the door is LESS THAN 24 inches ONE SMOKE DETECTOR IS REQUIRED ON
THE HIGHER SIDE OF THE PASSAGE ONLY (depth more than 24" requires 2 one on
each side of passage) - ANSWER: 24" requires 1 smoke detector on the higher side
2 smoke detectors if the depth is more than 24
Smoke detectors in elevator lobbies, hoist ways, or machine rooms can be used to
activate the elevator recall function. Other fire detectors may be permitted if ambient
conditions in those locations prohibit the use of smoke detectors TRUE/FALSE -
ANSWER: true
how long before a fire system is taken out of service should the AHJ be notified in
writing - ANSWER: 30 days
, the AHJ shall be notified if the fire system is out of service for _____ - ANSWER: 4 or
more hours within a 24 hour period
smoke detectors that use the light obscuration concept to detect smoke are called -
ANSWER: photoelectric detectors
where partitions extend to within 15% of the ceiling, the spaces by the partitions shall be
considered as separate rooms TRUE/FALSE - ANSWER: true
Smoke detectors mounted in the air duct of HVAC systems shall initiate either an alarm
signal or a supervisory signal at a constantly attended location TRUE/FALSE -
ANSWER: true
The sprinkler water flow alarm must activate within ____ seconds for a water flow equal
to or greater than that from the smallest orifice sprinkler in the sprinkler system -
ANSWER: 9 seconds
Air sampling smoke detector have a maximum air sample target time of _____ seconds
from the farthest port to the detector - ANSWER: 120 seconds
how far away should a smoke detector be placed from a bathroom that contains a
shower or tub? - ANSWER: 36 inches
how far away should an ionization detector without a silencing means be placed from a
cooking appliance or heat source? - ANSWER: 20 feet
how far away should an ionization detector with a silencing means be placed from a
cooking appliance or heat source? - ANSWER: 10 feet
how far away should a photoelectric detector be placed away from a cooking appliance
or heat source? - ANSWER: 6 feet
