TFM-12 Fire Alarm Technical Questions
with Correct Answers
What does P.L.F.A stand for? - ANSWERSPower Limited Fire Alarm
what does NPLFA stand for? - ANSWERSNon-Power limited fire alarm
what material must NPLFA circuit conductors be made from? - ANSWERSsolid or
stranded copper
what is a single station detector - ANSWERSBattery powered smoke alarms that do not
communicate off premises.
what is a multiple station detector - ANSWERSSmoke alarms that are battery backed
up and 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 station detectors) be inspected and
tested? - ANSWERSwith accordance to manufacturers at least Monthly
what does restorable mean - ANSWERSa device that can be restored or reused after it
has I initiated an alarm
how frequently must household (fire akram systems) be inspected and tested -
ANSWERSat least every year by a qualified technician.
What size conductors are permitted? - ANSWERSSize 18 A.W.G and 16 A.W.G
what is used to protect transformers or other devices supplied from power-supply
conductors. - ANSWERSan overcurrent device not rated over 20 Amperes.
When located within 7ft of the floor, how shall cables be fastened? - ANSWERSCables
shall be fastened in an approved manner at intervals of not more than 18 inches.
Single conductors shall not be smaller than ___ A.W.G? - ANSWERS18
Conductors of 26 A.W.G shall only be permitted in which circumstances? -
ANSWERSwhere spliced with a connector listed as suitable for 26 or 24 AWG
what is a Plenum cable - ANSWERSCable that can be installed in ducts, plenums or
other spaces used for environmental air.
with Correct Answers
What does P.L.F.A stand for? - ANSWERSPower Limited Fire Alarm
what does NPLFA stand for? - ANSWERSNon-Power limited fire alarm
what material must NPLFA circuit conductors be made from? - ANSWERSsolid or
stranded copper
what is a single station detector - ANSWERSBattery powered smoke alarms that do not
communicate off premises.
what is a multiple station detector - ANSWERSSmoke alarms that are battery backed
up and 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 station detectors) be inspected and
tested? - ANSWERSwith accordance to manufacturers at least Monthly
what does restorable mean - ANSWERSa device that can be restored or reused after it
has I initiated an alarm
how frequently must household (fire akram systems) be inspected and tested -
ANSWERSat least every year by a qualified technician.
What size conductors are permitted? - ANSWERSSize 18 A.W.G and 16 A.W.G
what is used to protect transformers or other devices supplied from power-supply
conductors. - ANSWERSan overcurrent device not rated over 20 Amperes.
When located within 7ft of the floor, how shall cables be fastened? - ANSWERSCables
shall be fastened in an approved manner at intervals of not more than 18 inches.
Single conductors shall not be smaller than ___ A.W.G? - ANSWERS18
Conductors of 26 A.W.G shall only be permitted in which circumstances? -
ANSWERSwhere spliced with a connector listed as suitable for 26 or 24 AWG
what is a Plenum cable - ANSWERSCable that can be installed in ducts, plenums or
other spaces used for environmental air.
