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NICET Fire Alarm Level 1 (100 out of 100)
Questions and Verified Answers (Latest Update)
GRADED A
When a device is inaccessible due to excessive height, such as an atrium, what it the maximum interval for testing? 18 months When installing a wall-mounted fire telephone appliance to the public, what is the acceptable maximum mounting height from the floor? 66 inches Elevator lobby smoke detectors shall be mounted within a maximum of which distance from the center- line of the door? 21 feet At minimum, when working near power lines with voltage of 600 volts and lower, an aerial lift operator shall maintain which distance from the lines? 10 feet The use of unprotected EMT shall be permitted under which conditions? when in direct contact with the earth
According to NFPA 70, what is the maximum unsupported length of 1/2-inch flexible metallic conduit where flexibility is required after installation? 4 1/2 feet What is the maximum bend (in degrees) permitted in a conduit run between outlet boxes? 360 Degrees If the primary power is disconnected and the fire alarm system goes into an alarm condition, what is the minimum acceptable time for secondary power to operate the voice evacuation systems? 15 minutes A riser room temperature switch should activate when the temperature falls below which level? 40 degrees F According to NFPA 72, what is the maximum sound pressure level permitted in a space with notification appliances? 110 dBA What is the minimum interval for testing a single-station smoke detector in multifamily units? Annually Where should a technician install a detector in relation to beam that is less than 12 inches deep and less that 8 feet in center? At the bottom of the beam
The requirement forbidding fire alarm circuits from being T-tapped, unless indicated by the manufacturer's instructions, is intended to prevent which type of improper malfunction? monitoring integrity of installation conductors? What is the maximum operating temperature of TW insulation? 140 Degrees F, Table 310.15 (B)(16) Which type of meter is used to measure the current draw of a strobe circuit? multimeter What is an acceptable document for finding information on spacing of video imaging smoke detection systems? shop drawings in submittal package When pulling multiple cable through a junction box, the installer must leave which minimum length of wire for splicing? 6 inches of wire Which three of the following conditions are symptoms of a heart attack? heartburn, pain in chest, shortness of breath Sprinkler water storage containers shall be supervised to indicate what the water temperature drops to which level? 40 degrees F
According to NFPA 72, what is the minimum separation between outgoing and returning conductors for a Class A loop that is horizontally placed down to an 8 foot-wide corridor? 4 feet of separation According to NFPA 72, a public emergency alarm reporting system shall operate its emergency power source for which minimum time period? 10 minutes Where shall employers post a safety data sheet? in the technician's work area According to NFPA 72, during an acceptance test, which method can be utilized for testing a sprinkler waterflow switch? Open the inspector's test valve to cause an actual flow of water, ensure that the control panel receives the alarm within 90 seconds I'm technicians are working in a plant, remind to learn of the plants safety regulations? from OSHA regulations? When into a telephone communication system is required, at least one telephone or Jack shall be installed in which of the following locations? in a fire pump room
Every 12 months We're the outgoing and return conductors enter or exit notification of clients, the conductors are permitted to run in the same cable assembly for up to which maximum distance? 10 feet? Which part requires special handling or disposal? lead acid batteries What is the minimum acceptable size of conductors for multi conductor cables? 26 AWG Which type of detector is recommended for protecting atriums and similar open spaces? projected beam-type Which type of fire alarm key blank must be used for a run that will be installed in a Plenum space? FPLP It technician notices that a step is missing from the letter which two are the current courses of action? Notify a supervisor; Tag the ladder to prevent others from using it. The minimum size for EMT is
1/2 inch The maximum size fro EMT is 4 inches EMT shall be securely fastened in place at least every 10 feet A load where the maximum current is expected to continue for 3 hours or more. Continuous Load The maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. Ampacity A device intended to provide protection from the effects of arc faults by the recognizing characteristics unique to arcing and by functioning to de-energize the circuit what an arc fault is detected Arc-Fault Circuit Interrupter(AFCI) The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s), Branch Circuit
A circuit class is not monitored for integrity? Class E How is a class B circuit different from a class A circuit? Class B does Not have a redundant path; Operational capability stops at a single open. Monitoring for integrity shall not be required for the interconnection between enclosure containing control equipment located within 20 feet I or Amperes = E/R R or Resistance E/I E or Voltage I x R K for Copper @ 167 degrees F
K for Aluminum @ 167 degrees F
Voltage drop formula for single-phase circuits Vd = (2K x L x I) / Cm Voltage drop formula for three-phase circuits Vd = (1.73K x L x I) / Cm Total Current for series circuit I(t) = I(1) = I(2) = I(3), etc. Total voltage for series circuit E(t) = E(1) + E(2) + E(3), etc. Total resistance for series circuit R(t) = R(1) + R(2) + R(3), etc. Total Current for parallel circuit I(t) = I(1) + I(2) + I(3), etc.
Beam Construction Actuation of alarm notification appliances or EVC's, emergency control function interface devices, and annunciation at the protected premises shall occur within 10 seconds indication and restoring of self-restoring supervisory device shall be automatically indicated within 90 seconds Maximum air sample transport time from the farthest sampling port to the detector shall not exceed 120 seconds Wire splices angle or are you polls are made, the distance between each raceway entry inside the box or condo and body and the opposite wall of the box or kind a wood-burning or not be less than 6 times the trade size of the largest raceway in a row. Vertical runs of a metal wireway shall be securely supported at intervals not exceeding 15 feet Metal wireways shall be supportive wire run horizontally at each end and at intervals not to exceed 5 feet
Class 1 location hazards Flammable gases and liquid-produced vapors Class 2 location hazards Combustible dust Class 3 location hazards Easily ignitable fibers and combustible flyings Class 1 Division 1 Gases and vapors exist under normal conditions, exists frequently because of repair or maintenance operations or leakage, or the breakdown or faulty operation of equipment. Class 1 Division 2 Gases and papers will normally be confined within close containers or systems which can only answer escape in the case of accidental rupture, breakdown or abnormal operation of equipment does normally provide and buy a positive mechanical ventilation Class 2 Division 1 Combustible dust is in the air under normal operating conditions, mechanical failure or abnormal operation of machinery or equipment might cause such explosive or ignitable mixtures or quantities sufficient to be hazardous. Class 2 Division 2
Group F Atmospheres containing can bustable carbonaceous dust that have more than 8% total entrapped volatiles, I.e. charcoal Group G Atmospheres containing come bustable does not included in Group E or F including flour, green, wood, plastic and chemicals. Class 1 circuit The portion of the wiring system between the load side of the overcurrent device. Class 2 circuit The portion of wiring system between the load side of the class 2 power source and the connected equipment. Class 3 circuit The portion of the wiring system between the load side class 3 power source and the connected equipment. Single conductors in a fire alarm system shall not be smaller than 18 AWG Percentage of cross-section of conduit of 1 conductor
Percentage of cross-section of conduit of 2 conductors 31% Percentage of cross-section of conduit of more than 2 conductors 40%
