Fire Alarm System Requirements and Regulations, Exams of Engineering

Download Fire Alarm System Requirements and Regulations and more Exams Engineering in PDF only on Docsity! NICET II PRACTICE QUESTIONS WITH CORRECTLY SOLVED ANSWERS. Consider a Use Group B Ambulatory Health Care facility with and occupant load of 300. The building is not provided with a fire sprinkler system. The fire alarm system is required to include _____? Smoke detection Pre signal A manual fire alarm system throughout Voice evacuation - Correct Answer-Smoke detection IBC 907.2.2(3) Consider a room which is 30 feet x 30 feet square. The ceiling has a slope with the low side at 8 feet AFF. In order for the slope to impact heat detector spacing, the high side would be _____ feet AFF or more? 12 10 11 13 - Correct Answer-12 NFPA 72 3.3.36.2 The IBC states each floor shall be zoned separately and zones shall not exceed _____ ft.²? 22500 20000 17500 25000 - Correct Answer-22500 IBC 907.64 Consider a room which is 30' x 30' with the ceiling height of 20 feet. The minimum candela requirement for a single ceiling mounted visible notification appliance is _____ cd? 45 75 15 30 - Correct Answer-45 NFPA 72 Table 18.5.5.4.1(b) Consider the installation of an HVAC duct detector. According to NFPA 90A, a return-side duct detector is required for HVAC units greater than _____ cfm and serving 2 or more floors? 2500 3000 1500 5000 - Correct Answer-15000 NTC Brown Book pg. 256 Upon arrival at a job site to prewire the fire alarm system, a technician identifies that the framing is not complete. The most appropriate person for the technician to notify is _____? Supervisor AHJ Electrical Contractor General Contractor - Correct Answer-Supervisor Project Management Which of the following is a symptom of heat stroke? (Select Three) Profuse sweating Headache Vertigo Dry skin - Correct Answer-Headache Vertigo Dry skin First Aid Book The fire alarm system for a building requires the installation of an emergency voice alarm/communication system. The emergency voice alarm/communication system will be used for partial evacuation and spacing is 42 inches. Based on this, smoke detectors parallel to the beams should be spaced at _____ feet? 25 30 15 20 - Correct Answer-30 NFPA 72 17.7.3.2.4.2(2)(b)(i) The delay from the operation of an initiating device to the automatic activation of the emergency control function shall not exceed _____ seconds? 90 60 10 30 - Correct Answer-10 NFPA 72 10.11.1 Consider the sensitivity testing of smoke detectors in other than one and two family dwellings. The second required calibration test was conducted January of 2021 and sensitivity tests indicate that the device has remained within its listed in marked sensitivity range. The next calibration test should be scheduled on or before _____? December 2023 December 2025 December 2026 December 2024 - Correct Answer-December 2025 NFPA 72 14.4.4.3.3 The symbol in NFPA 72 which indicates more explanatory information can be found in Annex A, is _____? Highlight in gray The black dot The asterisk The solid vertical line - Correct Answer-The asterisk NFPA 72, note before Chapter 1 According to the IBC, duct smoke detectors are required to _____? Connect to the fire alarm system Directly shut down the HVAC system Generate an alarm signal at the panel Be unsupervised - Correct Answer-Connect to the fire alarm system IBC 907.3.1 Consider the use of an air sampling type smoke detector. The detector shall give a _____ signal if the airflow is outside the manufacturer's specified range? Trouble Alarm Delinquency Supervisory - Correct Answer-Trouble NFPA 72 17.7.3.6.5 While replacing a defective heat detector, it is discovered that one of the heat detectors has a green color code. The green color code indicates that the detector has a temperature classification of _____? High Extra High Very extra high Intermediate - Correct Answer-Very extra high NFPA 72 Table 17.6.2.1 What is the testing frequency for primary power? Monthly Quarterly Semiannually Annually - Correct Answer-Annually NFPA 72 Table 14.4.3.2 Consider a room which is 50 feet x 200 feet with a smooth and level ceiling at 10 feet AFF. A total of _____ heat detectors with a listed spacing of 50 feet would be required to cover this room? 4 3 5 6 - Correct Answer-4 NFPA 72 17.6.3.1.1 According to NFPA 72, the documentation cabinet requirements include _____? (Select Three) Emergency Communications Systems documents are permitted to be in the cabinet Contents of the cabinets shall be accessible by authorized personnel only Shall be prominently labeled "System Record Documents" The AHJ shall have a key for access - Correct Answer-Emergency Communications Systems documents are permitted to be in the cabinet Contents of the cabinets shall be accessible by authorized personnel only Shall be prominently labeled "System Record Documents" NFPA 72 7.7.2 Which of the following fire alarm systems require runner service? (Select Two) Auxiliary Station Central Station Proprietary Station Remote Station - Correct Answer-Central Station Proprietary Station NFPA 72 A.26.1 Consider the use of heat detectors with a listed spacing of 15 feet installed on a smooth and level ceiling 14 feet AFF. Based on this, adjusted spacing is _____ feet? 13 12 11 15 - Correct Answer-12 NFPA 72 Table 17.6.3.5.1 Consider the selection of audible appliances for sleeping rooms in the hotel. Audible appliances provided for the sleeping areas to awaken occupants shall produce a low frequency alarm signal with a waveform that has a fundamental frequency of _____ ± 10 percent? 30 - Correct Answer-15 NFPA 72 10.6.7.2.1.2 Ladders must be inspected _____ to identify any visible defects that could cause employee injury? Weekly Before each initial use on each shift Daily Monthly - Correct Answer-Before each initial use on each shift OSHA 29 CFR 1910 The delay from the operation of an alarm initiating device to the automatic activation of the notification appliances shall not exceed _____ seconds? 60 10 90 30 - Correct Answer-10 NFPA 72 10.11.1 Consider a simple series circuit with a 24 VDC power supply and a single 240 ohm resistor. The current for this circuit is _____ amps? 0.1 10 1 1 00 - Correct Answer-0.1 NTC Brown Book (Basic Electronics) It is determined that the charging circuit on the fire alarm panel will recharge the batteries and 39 hours. According to NFPA 72, battery charging equipment shall be provided to recharge batteries within _____ hours after fully charged batteries have been subject to a single discharge cycle? 12 72 24 48 - Correct Answer-48 NFPA 72 10.6.10.3.2 Consider the installation of a visible notification appliance in a corridor which is 15 feet wide. Visible notification appliances shall have a spacing not to exceed _____ feet in a corridor? 30 50 20 100 - Correct Answer-100 NFPA 72 18.5.5.5.5 A contract requires that the project comply with NFPA 72 Chapter 26 section 4. Based on this, upon receipt of an alarm signal, the supervising station operator shall dispatch a runner to the alarm location to arrive within _____ after receipt of a signal? 15 minutes 1 hour 30 minutes 2 hours - Correct Answer-2 hours NFPA 72 26.4.6.6.1(2) Consider a proprietary fire alarm system. The secondary power supply shall have sufficient capacity to operate the system under quiescent load for a minimum of _____? 60 hours 5 minutes 15 minutes 24 hours - Correct Answer-24 hours NFPA 72 10.6.7.2.1 A fire alarm system requires the use of smoke detectors in a corridor. The corridor is 15 feet wide and 120 feet long. The ceiling in the corridor is smooth and level at 10 feet high (AFF). What is the minimum number of smoke detectors in the corridor? 4 2 3 5 - Correct Answer-4 NFPA 72 Figure A.17.6.3.1.1(g) In case of a misfire of a powder actuated tool, the operator shall hold the tool in the operating position for at least _____ seconds and shall continue to hold the muzzle against the work surface during this assembly or opening of the tool and removal of the powder load? 15 20 30 60 - Correct Answer-15 OSHA 29 CFR 1910 Live parts of electrical equipment operating at _____ volts or more shall be guarded against accidental contact by cabinets or other forms of enclosures, or a means only accessible to qualified persons? 50 120 240 24 - Correct Answer-50 OSHA 29 CFR 1910 A fire alarm project requires smoke detection in the room which is 60' x 60'. How many spot type smoke detectors are required? 2 3 5 4 - Correct Answer-4 NFPA 72 17.7.3.2.3.1 A trainee needs to use an aerial lift to perform the acceptance test for a beam detector. Which of the following is an OSHA requirement when using an aerial lift? (Select Two) Lift manufacturer must be present during use Another employee must be watching from the floor