TFM 12 FIRE ALARM TECHNICAL Exam |
Detailed Review Guide with Exam
Questions and Verified Solutions | Graded
A+
‣ What is a single station detector? Answer: Battery powered smoke
detectors that do not communicate off premises.
‣ What is a multiple station detector? Answer: Mains powered smoke
detectors with battery backup that are linked together, so that if one unit
initiates, alarms in all detectors will sound. They do not communicate
off premises.
‣ How frequently must household single and multiple single station
detectors be inspected and tested? Answer: In accordance with the
manufactures recommendations, at least monthly.
‣ How frequently must household single and multiple station detectors
be inspected and tested? Answer: At least 3 years, by a qualified service
technician.
‣ How frequently must heat detectors be tested? Answer: Two or more
annually, different detectors must be tested each year, and within 5 years
all detectors must have been tested.
, ‣ What does "restorable" mean? Answer: The detector can be "restored"
or "reused" after it has initiated.
‣ What does "non-restorable" mean? Answer: The detector cannot be 're-
used" after it has initiated an alarm. (Think of a heat detector, which self
destructs upon initiating.)
‣ What size conductors are permitted? Answer: Size 18 AWG and 16
AWG are permitted, provided they do not exceed certain rated
ampacities
‣ What is used to protect transformers or other devices supplied from
power-supply conductors? Answer: An overcurrent device not rated over
20 Amperes
‣ When located within 7ft of the floor, how shall cables be fastened?
Answer: Cables shall be fastened in an approved manner at intervals of
not more than 18 inches.
‣ Single conductors shall not be smaller that ___ AWG? Answer: 18
‣ Conductors of 26AWG shall only be permitted in which
circumstances? Answer: Where spliced with a connector listed as
suitable for 26 to 24 AWG.
Detailed Review Guide with Exam
Questions and Verified Solutions | Graded
A+
‣ What is a single station detector? Answer: Battery powered smoke
detectors that do not communicate off premises.
‣ What is a multiple station detector? Answer: Mains powered smoke
detectors with battery backup that are linked together, so that if one unit
initiates, alarms in all detectors will sound. They do not communicate
off premises.
‣ How frequently must household single and multiple single station
detectors be inspected and tested? Answer: In accordance with the
manufactures recommendations, at least monthly.
‣ How frequently must household single and multiple station detectors
be inspected and tested? Answer: At least 3 years, by a qualified service
technician.
‣ How frequently must heat detectors be tested? Answer: Two or more
annually, different detectors must be tested each year, and within 5 years
all detectors must have been tested.
, ‣ What does "restorable" mean? Answer: The detector can be "restored"
or "reused" after it has initiated.
‣ What does "non-restorable" mean? Answer: The detector cannot be 're-
used" after it has initiated an alarm. (Think of a heat detector, which self
destructs upon initiating.)
‣ What size conductors are permitted? Answer: Size 18 AWG and 16
AWG are permitted, provided they do not exceed certain rated
ampacities
‣ What is used to protect transformers or other devices supplied from
power-supply conductors? Answer: An overcurrent device not rated over
20 Amperes
‣ When located within 7ft of the floor, how shall cables be fastened?
Answer: Cables shall be fastened in an approved manner at intervals of
not more than 18 inches.
‣ Single conductors shall not be smaller that ___ AWG? Answer: 18
‣ Conductors of 26AWG shall only be permitted in which
circumstances? Answer: Where spliced with a connector listed as
suitable for 26 to 24 AWG.
