NICET 2 QUIZ QUESTIONS WITH CORRECT SOLUTIONS

Where located above floor (within 2.1m or 7ft.) cables shall be securely fastened at intervals of? - not more than 18 inches Which cable types can be installed in fireproof riser shafts? - FPLP, FPLR, and FPL How many THHN conductors can fit in a 3/4 size Rigid PVC conduit? - 17 This is the defined as the height from the continuous floor of a room to the continuous ceiling of a room or space? - Ceiling height The visible annunciation of the location of operated initiating device shall not be? - by the means used to deactivate alarm notification appliances. Subsequent trouble signals shall cause trouble notification appliances to activate as required by what? - system input/ output matrix System equipment shall be maintained in accordance with what? - Manufacturer's published instructions The detector sensitivity shall not be tested or measured using any device that administers? - an unmeasured concentration of smoke or other aerosol into the detector or smoke alarm Sensitivity shall be checked within how long? - 1 year after installation Where partitions extend to within 15% of the ceiling height, the spaces separated by the partitions shall be? - considered separate rooms Spot-type heat detectors shall include? - Response time index The first line of detectors shall be located at or within? - 36 inches of the peak of the ceiling Smoke detectors shall be marked with? - with their nominal production sensitivity and tolerance in in percent per foot obscuration Spot-type smoke detectors shall be permitted to be located on ceiling or on the bottom of beams for ceilings with beam depths of? - less than 10% of the ceiling height. If any barrier, such as a door, curtain, or retractable partition is located in sleeping areas, sound pressure level shall be measured? - with the barrier placed between the appliance and pillow Appliances intended for use in special environments, such as outdoors vs. indoors shall be what? - listed for the intended purpose In-building emergency mass notification system shall be permitted to be initiated how? - by manual or automatic means Any signal received by the supervising station that has not restored to normal condition within 24 hours of initial receipt shall be re-displayed to an operator as a nonrestored signal and shall be? - reported to the subscriber All operator controls at the proprietary supervising station shall be? - operated at each change of shift The external antennas of all radio transmitting and receiving equipment shall be _____________ in order to minimize the possibility of damage by static discharge or lightning? - protected Where each circuit is served by a dedicated recording device, the number of reserve recording devices required on site shall be equal to _____ of the circuits in service and in no case less than one device. - 5% The smallest discrete area used for any announcements or signaling? - Notification zone _______ calculates the actuation time of sprinklers and fusible link-actuated ceiling vents in compartment fires with draft curtains? - LAVENT (link actuated vent) __________ Calculates the actuation time of heat detectors and sprinklers? - DETACT (detector actuation) The choice of the type of radiant energy-sensing detector to use is determined by what? - Type of emissions that are expected from the fire radiator _____ ____ refers to the minimum velocity of the smoke necessary to enter the sensing chamber to cause an alarm without significant delays due to entry lag? - Critical Velocity Name 3 factors that can affect smoke entry into detection chambers? - insect screens, sensing chamber configuration, and location of the detector The __ __ is the fire the system is intended to detect? - design fire Alertness, age, mobility, quantity and location within the building, sex, responsiveness, familiarity with the building, or mental challenges are all part of? - occupant characteristics configuration, environment, equipment, functioning characteristics, target locations, potential ignition sources, and aesthetic or historic preservation are all considered part of? - building characteristics Ambient sound level is measured how high above floor? - 5 ft Rectifiers shall be supplied from _________ of an isolating transformer? - secondary Unlicensed radion frequencies shall not be permitted. True/False? - True Wires and fiber-optic strands shall be terminated to prevent? - breaking from vibration or stress Conductors and cables for public emergency alarm reporting system use shall not be attached to a? - crossarm that carries electric light and power conductors