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TFM 12 Fire Alarm Technical Test with 100% Correct Answers REVISED & VERIFIED 2023//2024

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TFM 12 Fire Alarm Technical Test with 100% Correct Answers REVISED & VERIFIED 2023//2024 Does a fire hood system and a kitchen need to be monitored by the fire alarm system? - ANSWER Yes What does P.L.F.A stand for? - ANSWER Power Limited Fire Alarm What does N.P.L.F.A stand for? - ANSWER Non-Power Limited Fire Alarm What is the difference between P.F.L.A and N.P.F.L.A? - ANSWER an N.P.L.F.A can operate at up to 600v, and the power output isn't limited a P.L.F.A has the voltage and power limited by a listed power source. What material must N.P.F.L.A circuit conductors be made from? - ANSWER ONLY solid stranded copper is permitted. What does A.W.G stand for? - ANSWER American Wire Gauge What size conductors are permitted? - ANSWER Size 18 A.W.G and 16 A.W.G are permitted, provided they do not exceed certain capacities. What is used to protect transformers or other devices supplied from power-supply conductors? - ANSWER An over-current device not rated over 20 amperes. When located within 7 feet 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 ___ A.W.G? - ANSWER 18 Conductors of 28 A.W.G shall only be permitted in which circumstance? - ANSWER Spliced with a connector listed as suitable for 26 to 24 A.W.G How shall P.F.L.A conductors NOT be installed? - ANSWER P.F.L.A conductors shall not be strapped, taped, or attached to the exterior of any conduit or raceway. What is Plenum cable? - ANSWER Cable that can be installed in ducts, plenums, or other spaces used for environmental air

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