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TFM12 EXAM WITH ACCURATE SOLUTIONS
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TFM12 EXAM WITH ACCURATE SOLUTIONS 2025-2026What is used to protect transformers or other devices supplied from power-supply
conductors? - Answer A. An overcurrent device not rated over 20 Amperes.
What does PLFA stand for? - Answer Power Limited Fire Alarm
What does NPLFA stand for? - Answer Non-Power Limited Fire Alarm
What material must NPLFA circuit conductors be made from? - Answer Solid or
stranded copper
What is a single station detector? - Battery powered smoke alarms that do not
communicate off premises.
What is a multiple station detector? - Smoke alarms with battery backup and
interconnected such that if one unit initiates, all detectors will sound. They do not
communicate off premises.
How frequently must residential single and multiple station detectors be inspected and
tested? -Answer At least monthly, based upon the manufacturers recommendations
How frequently must residential fire alarm systems be inspected and tested? -Answer At
least annually, by an experienced service technician.
What does 'restorable' mean? -Answer The device can be 'restored' or 'reused' following
its having caused an alarm to be initiated.
What size conductors are allowed? - Answer A. 18AWG and 16AWG
, When installed within 7ft of the floor, how must cables be secured? - Answer Cables
must be secured in an accepted manner at intervals not exceeding 18 inches.
Single conductors shall not be smaller than______ AWG - Answer 18
Conductors of 26AWG shall only be permitted in what circumstances? - Answer A.
Where spliced with a connector listed as suitable for 26 to 24 AWG
What is a Plenum cable? - Answer Cable that can be installed in ducts and other spaces
used for environmental air.
What is Riser cable? - Answer Cable to be used in vertical wire runs in shafts or between
floors.
What is General Purpose cable? - Answer A. Cable for general purpose fire alarm use
What 'type' shall plenum cable be? - Answer FPLP
What substitutions are allowed for the above? - Answer CMP
What 'type' shall riser wire be? - Answer FPLR
What substitutions are permitted for the above? - Answer FPLP
What 'type' shall general purpose wire be? - Answer FPL
What substitutions are permitted for the above? - Answer CM
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