TFM12 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+

TFM12 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ What 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? Answer: Battery powered smoke alarms that do not communicate off premises. What is a multiple station detector? Answer: Smoke alarms with battery backup that are linked together, so that if one unit initiates, all detectors will sound. They do not communicate off premises. How frequently must household single and multiple station detectors be inspected and tested? Answer: In accordance with the manufacturers recommendations, at least monthly How frequently must household fire alarm systems be inspected and tested? Answer: At least every year, by a qualified service technician. What does 'restorable' mean? Answer: The device can be 'restored' or 'reused' after it has initiated an alarm. What size conductors are permitted? Answer: A. Size 18AWG and 16AWG 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 than (X) AWG Answer: 18 Conductors of 26AWG shall only be permitted in which 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 f