FIRE ALARM QUESTIONS AND ANSWERS GRADED A+

FIRE ALARM QUESTIONS AND ANSWERS GRADED A+ Spot type smoke detectors located on a sidewall shall be located between _____ and _____ inches down from the ceiling to the top of the detector 4 and 12 The secondary power source for a fire alarm may be a battery with enough capacity to support the fire alarm panel with enough power to last ? hours, after which it shall have enough capacity to sound the notification appliances for at least? minutes 24 hours, 5 minutes Partitions which do not extend to the ceiling and are 18" or more from the ceiling are considered not to have an effect on smoke travel to warrant a reduction of spacing true Audible notification devices shall be rated 15db higher than the average noise level, or 5 db higher than the max noise level in that room true The minimum decibel level for a fire alarm signal is: 75db Acuation of alarm notification appliances or emergency voice communications, fire alarm safety functions, annunciation at the protected premises shall occur within ? seconds after the activation of the initiating device 10 seconds A spot type smoke detector located on a ceiling shall not be less than ? inches from a sidewall to the nearest edge of the detector 4 inches For smoke detector spacing on peaked ceilings, detectors shall be spaced and located within _____ feet of the peak, measured horizontally 3 feet Power limited fire cable shall have a voltage rating of ? volts 300 volts When the distance between the ceiling and the top of the door is greater than ? inches NFPA states that you should have two smoke detectors, 1 on each side of the door 24 inches Fire doors with 24" or more of open space above the door require two smoke detectors, one on each side of the passage True Cooking vapors can cause nuisance alarms, but photoelectric type smokes are more resistant to cooking vapors than ionization smoke alarms True A bimetallic heat detector is an example of a? Spot type detector A device used to terminate a supervised circuit End of line device Detectors shall not be recessed in any way unless they have been tested and listed for such mounting True Shall have knowledge and experience of the testing requirements for fire alarm and signaling equipment Testing personnel What classification are smoke detectors installed and used to prevent the control of smoke spread by initiation controls of doors, fans, or dampers 1. Area smoke detectors that are installed in the rated smoke compartments 2. Detectors installed in the duct system The name of photoelectric light obscuration where the beam spans the protected area is Projected beam smoke detector A smoke detector receiving the required operational test may be removed from installed location for testing purposes False A pre signal system shall not be installed unless approved by 1. Fire Marshall 2. AHJ The alert tone preceding any message may be part of the voice message but cannot be transmitted automatically from a separate tone generator false Manual fire alarm boxes shall be red in color True Are optical cables permitted in fire alarm wiring Yes Fire alarm signals and trouble alarms may have the same tone and characteristics as long as the lenses are painted different colors false The number of smoke detectors selected for sensitivity testing shall be in accordance with NFPA 72 Water is held back by compressed air. When the sprinkler actuates the air pressure drops causing the valve to trip which allows water to enter Wet sprinkler Ionization Detector Type of smoke detector that uses a small amount of radioactive material to make the air within a sensing chamber conduct electricity. Smoke detectors listed or approved exclusively for door release service shall not be used for open area protection true Mirrors may be utilized with the projected beam smoke detectors False Mirrors are allowed to be installed in projected beam detectors True Municipal fire alarm system A public emergency alarm reporting system Pneumatic line type detectors shall be tested for leaks and proper operation at six-month intervals False