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FIRE ALARM TFM 12 EXAM 2025 QUESTIONS
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- What is a "Rate Compensation Detector"? - Correct Answer-A device that responds when the temperature reaches a pre-determined level.
- What is a "Rate of Rise Detector" - Correct Answer-A device that responds when the temperature rises at a rate exceeding a pre-determined value.
- What is a Smoke Detector? - Correct Answer-A device that detects both visible and invisible combustion particles.
- Which sensor is best at detecting invisible smoke particles? - Correct Answer- Ionization
- Which sensor is best at detecting thick, visible smoke particles? - Correct Answer-Photoelectric
- What does PLFA stand for? - Correct Answer-Power Limited Fire Alarm
- What does "restorable" mean? - Correct Answer-The detector can be "restored" or "reused" after it has initiated.
- What does "non-restorable" mean? - Correct 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? - Correct Answer-Size 18 AWG and 16 AWG are permitted, provided they do not exceed certain rated ampacities 10.What does NPLFA stand for? - Correct Answer-Non Power Limited Fire Alarm 11.What material must NPLFA circuit conductors be made from - Correct Answer- Only solid or stranded copper is permitted 12.What is a single station detector? - Correct Answer-Battery powered smoke detectors that do not communicate off premises. 13.What is a multiple station detector? - Correct 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. 14.How frequently must household single and multiple single station detectors be inspected and tested? - Correct Answer-In accordance with the manufactures recommendations, at least monthly. 15.How frequently must household single and multiple station detectors be inspected and tested? - Correct Answer-At least 3 years, by a qualified service technician. 16.How frequently must heat detectors be tested? - Correct Answer-Two or more annually, different detectors must be tested each year, and within 5 years all detectors must have been tested.
25.What type shall plenum cable be? What substitutions are allowed? - Correct Answer-Power Limited Fire Alarm Plenum (FPLP) CMP can be substituted. 26.What type shall riser wire be? What substitutions are permitted? - Correct Answer-Power Limited Fire Alarm Riser (FPLR) CMP,FPLP,CMR can be substituted. 27.What type shall general purpose wire be? What substitutions are permitted? - Correct Answer-Power Limited Fire Alarm (FPL) CMP,FPLP,CMR,FPLR,CMG, and CM can be substituted. (All types) 28.What is the maximum voltage permitted through multi-conductor NPLFA cables? - Correct Answer-150 volts 29.What is the voltage rating of PLFA cables? - Correct Answer-Not less than 300 volts 30.Shall the voltage be marked on PLFA cables? - Correct Answer-No, because they may be misinterpreted and used for electrical applications. 31.What is a Spot Type Detector? - Correct Answer-A device in which the detecting element is concentrated at particular location. 32.What is a Digital Alarm Communicator Receiver? (DACR) - Correct Answer-a system component that accepts and displays signals sent over the public phone network from a DACT. (Le. ADT Monitoring center) 33.What is a Digital Alarm Transmitter? (DACT) - Correct Answer-A system component at the protected premises is connected to the detection devices. It has line seizure and can connect to a DACR. (le. DSC Impassa)
34.What is an Alarm Signal? - Correct Answer-A signal indicating an emergency that requires immediate action. 35.What is a supervisory signal? - Correct Answer-A signal that indicates the need for action in connection with the SUPERVISION of the fire equipment. 36.What is a trouble signal? - Correct Answer-A signal that indicates a FAULT with the fire equipment. It must have an audible signal, distinctive form alarm signals. 37.Does an exterior horn for a sprinkler system need to be supervised? - Correct Answer-Yes 38.Does a fire hood sprinkler system in a kitchen need to be monitored by the fire alarm system? - Correct Answer-Yes 39.What is a cloud chamber smoke detection? - Correct Answer-A detector that draws an air sample into high-humidity, low pressure chamber. The condition in the chamber cause the moisture in the air to condense on the smoke particles, forming a cloud. The density of this cloud is measured by a photoelectric principle, if it meets a certain criteria, an alarm is generated. 40.What is a ionization smoke detector? - Correct Answer-A detector that uses a small amount of radioactive material to ionize the air between two differently charge electrodes. When smoke is present between these electrodes, it causes the conductance of the air to decrease, and this causes the alarm to trip. 41.What is a photoelectric light scattering smoke detection? - Correct Answer-A detector that uses light source and a photosensitive sensor, arranged so that light
50.If speakers are used to generate audible fire signals, what rule must apply? - Correct Answer-The speaker must be monitored for integrity. Any failure should result in a trouble signal. 51.In one or two family dwelling, where must smoke detectors be located? - Correct Answer-All sleeping rooms, outside of each sleeping area and on all levels of the dwelling, (including basements) 52.Where must spot type heat and smoke sensors be located on walls and ceilings?
- Correct Answer-On the ceiling - not less than 4 in from the sidewalls and ceilings 53.On the wall- between 4in and 12in from the ceiling. 54.When more that one detector is used on a ceiling, what spacing measurement shall be used? - Correct Answer-All points shall have a detector equal to 0. (70%) times listed spacing 55.Can detector be installed during construction? - Correct Answer-No, unless they are replaced after construction is complete. 56.Why must a smoke detector not be placed above 250ft? (Smoke detector shall not be) - Correct Answer-Because of the effects of stratification, smoke will often not rise above this point. 57.As the mounting location of smokes and heats get higher, the listed spacing must be reduced True or False? - Correct Answer-FALSE. The higher a heat is positioned, the smaller spacing. The higher a smoke us positioned, the wider the spacing
58.Detectors and appliances shall be protected from damage by a mechanical guard as long as? - Correct Answer-It is listed for the purpose and does not interfere with the operation of the device. 59.What is a water flow device? - Correct Answer-An attachment to the sprinkler system that can detect a predetermined rate of water flow, and is able to initiate the fire alarm. 60.When water flow occurs that is equal to or greater than the flow of a single sprinkler, how quickly shall the alarm signal initiate? - Correct Answer- 90 seconds 61.Can detectors be installed within an air duct system? Can they used as a substitute for open area protection? - Correct Answer-Yes and No 62.Detectors shall be ___ for the purpose which they are being used. - Correct Answer-Listed (i.e UL Listed) 63.Which Signals must take priority over all other signals? - Correct Answer-Fire. Even if a non-fire signal is generated first. 64.All extinguishment system with automatic detection equipment for activation shall also have? - Correct Answer-Means for manual activation (pull station) 65.How many fire alarm boxes (pull stations) are required in systems employing automatic fire or water flow detectors? - Correct Answer-At least one, located where required by the authority having jurisdiction.
76.Detectors and appliances can be mounted using wires behind them. True or False - Correct Answer-False. All detectors and appliances must be secured independently of their wiring. 77.Fire alarm pull boxes shall be located where? - Correct Answer-Throughout the protected area, in conspicuous locations. They must be within 5ft of the exit doorway on each floor. 78.Partitions shall cause spaces to be considered separate rooms when they extend to within what %? - Correct Answer- 15 79.Non fire alarm equipment is permitted to be integrated with the fire alarm system so long as? - Correct Answer-Any grounds or short circuits in this equipment do not cause interference with the fire alarm equipment. 80.What is the purpose of an end of line resistor? - Correct Answer-To supervise the current flowing through appliances and detector circuits, so that grounds and faults can be detected. 81.What MUST monitored for integrity? - Correct Answer-The installation wiring between the fire alarm control unit and the relay or other appliance (horn/strobe etc) 82.Each elevator lobby , elevator hoistway and elevator machine room detector MUST be capable of what? - Correct Answer-Initiating elevator recall when all other devices alarm condition. 83.Must the fire alarm devices within the elevator hoist way be integrated with the fire alarm? - Correct Answer-Yes
84.Wall mounted appliances must be located between which two distances above finished floor? - Correct Answer-Not less than 80 inches and not greater than 96 inches above the finished floor. 85.Average ambient sound levels greater than ___ shall require the use of ____? - Correct Answer-95db, Visual notification appliances 86.Any device intended to lock or unlock the exits shall be ______ - Correct Answer-Connected to the fire alarm system 87.When may manual testing be extended to ANNUALLY? - Correct Answer-If automatic testing is performed AT LEAST weekly by a remote fire alarm control unit 88.In a non-house-household applications, when shall the sensitivity of smoke detectors be tested? - Correct Answer-Within one year or installation and alternating years thereafter. However, if the second sensitivity test indicates that the detector has stayed within a healthy range, the time between calibration tests may be extended for up to 5 years. 89.Before proceeding with any testing, who must be notified and why? - Correct Answer-Facilities receiving the alarm and all building occupants. The purpose is to avoid unnecessary response. 90.How long does a monitoring facility have to notify clients of a change in service provider? - Correct Answer-30 days, in writing 91.In areas in which more than two visual notification appliances can be seen, they shall be _______ - Correct Answer-Synchronized. This is to avoid triggering epileptic seizures.
cable, enclosure, cable tray, raceway, or cable routing assembly. - Correct Answer-True
- Non concealed spaces - Correct Answer-unconcealed lengths can't be more than 10 feet
- Class 2 Circuits with PLFA - Correct Answer-permitted, provided that the insulation of the Class 2 circuit conductors in the cable, en- closure, raceway, or cable routing assembly is at least that re- quired by the power-limited fire alarm circuits.
- Audio System Circuits installed using class 2 or 3 wiring methods work with PLFA? - Correct Answer-No
- Conductors of circuits rated over volts, nominal, shall not occupy the same equipment wiring enclosure, cable, or raceway with con- ductors of circuits rated 1000 volts, nominal, or less - Correct Answer-True
- Can be used as a terminal fitting - Correct Answer-Bushing
- All piping to water motor operated devices shall be of a size not less than - Correct Answer-3/4 in
- Waterflow alarms shall be installed for every zone of the sprinkler system - Correct Answer-True
- When a system operates an audible alarm shall be given at the central safety station within ___________ of waterflow - Correct Answer-30 seconds
- Itv to waterflow actuation - Correct Answer-5 min
- Waterflow to panel - Correct Answer-90 seconds
