Fire Safety Requirements for Smoke and Heat Alarms and Detectors, Exams of Community Health

Download Fire Safety Requirements for Smoke and Heat Alarms and Detectors and more Exams Community Health in PDF only on Docsity! TFM 13 Prep Exam Questions with Verified Solutions 2024 Update. What is the purpose of fire warning equipment? - ANS to provide a reliable means of notifying occupants of the presence of fire and of the need to escape. What are the 3 basic requirements for all devices? - ANS 1. They must be approved and listed for the purposes for which they are intended 2. All devices will be installed according to manufacturer’s recommendations 3. The required minimum and location of detectors shall be satisfied. What is the emergency evacuation signal that shall be used? - ANS ANSI S3.41, or American National Standard Emergency Evacuation Signal Can the emergency evacuation signal be used for other devices? - ANS Yes, so long as those devices are used to indicate the need for evacuation When can fire warning equipment incorporate voice notification? - ANS When the voice message is completely contained within the 1.5 second pause of the emergency evacuation signal. When the voice message is first preceded by a minimum of 8 cycles of the emergency evacuation signal When the voice message interrupts the emergency evacuation signal for no longer than 10 seconds, and is followed by 2 cycles of the emergency evacuation signal. Whose responsibility is it to inform a technician of occupants with hearing disabilities? - ANS The hearing impaired party In what 6 places must detectors be installed to meet the requirements? - ANS 1. In all sleeping and guest rooms 2. Outside of all sleeping rooms, within 21ft of the door 3. on every level, including basements 4. on every level of a residential board and care occupancy, including basements 5. in the living areas of a guest suite 6. in the living areas of a residential board and care occupancy All points on a ceiling shall have a smoke alarm within a distance of _________ travel distance or shall have the equivalent of ___________ smoke alarm per _________ meter squared - ANS • 9.1m (30ft) • One • 46.5m2 (500ft2) In what 4 ways are smoke and heat alarms permitted to be powered? - ANS 1. Commercial light and power supply capable of operating the device for at least 24 hours in normal condition and 4 minutes of alarm 2. A noncommercial AC source with secondary power source capable of operating the device for at least 7 days in the normal condition and 4 minutes of alarm. 3. A non-rechargeable, non-replaceable primary battery capable of operating the device for at least 10 years and 4 minutes of alarm, followed by 7 days of trouble. 4. If battery primary power is permitted, requirements must meet 11.6.6 and 11.6.7 5. A spring wound mechanism with visible indication to show sufficient operating power is available In what 5 ways are household smoke and heat alarms permitted to be powered? - ANS 1. Two independent power sources. Primary shall be commercial light and power, secondary is a rechargeable battery. 2. Secondary source must be capable of operating the device for at least 24 hours and 4 minutes of alarm. 3. Secondary power source must be supervised, causing audible and visible trouble signals upon removal or low battery condition. 4. Rechargeable batteries used for secondary power must be automatically recharged, be recharged within 48 hours and provide a distinctive audible trouble signal before the battery is incapable of powering the device. 5. Low power wireless systems must be powered by batteries that comply with 6.17 What must be visible on all AC power primary sources? - ANS A 'power on' indicator. The AC primary power must be supplied by a dedicated branch circuit or the unstitched portion of a branch circuit used for power and lighting Electrical systems not designed to be installed by an electrician shall be powered by a source not in excess of how many volts? - ANS 30 All plug-in installations shall have a... - ANS Restraining means (Transformer screw) AC primary power must be supplied by a dedicated branch circuit or... - ANS the unstitched portion of a branch circuit used for power and lighting What does GFCI stand for? - ANS Ground Fault Circuit Interrupter What does AFCI stand for? - ANS Arc Fault Circuit Interrupter Operation of a switch or GFCI shall not cause loss of what? - ANS Primary power Smoke alarms powered by AFCI shall have...? - ANS a source of secondary power Neither loss nor restoration of primary power shall cause what? - ANS Alarm signals to generate If secondary power is provided, the primary power source must be capable of what? - ANS Operating the system under full load with the secondary power source disconnected. 7. Equipment shall not be installed within a 36in horizontal path from the tip of a ceiling fan blade 8. Smoke rising up a stairway must not be blocked by a door or obstruction 9. For stairways up from a basement, equipment shall be placed on the basement ceiling near to the entry to the stairs Where must spot-type heat and smoke sensors be located on walls and ceilings? - ANS On the ceiling - not less than 4in from the sidewall On the wall - Between 4in and 12in from the ceiling For sloped ceilings with a rise of greater than 1m every 8m (1ft in 8ft) horizontally, the detector or alarm shall be located how far from the peak? - ANS 0.9m (3ft) Heat detectors or alarms shall be mounted on the ceiling at least ________ from the wall - ANS Four inches Heat detectors or alarms shall be mounted on the wall with the top of the detector at least ______ from the ceiling - ANS Four inches Heat detectors or alarms shall be mounted on the wall with the top of the detector at least from the ceiling - ANS On the underside OR bottom The installation of wiring and equipment shall be in accordance with... - ANS NFPA 70 and the National Electrical Code, article 760 What 5 optional functions of fire warning equipment shall be permitted? - ANS 1. Notification of the fire department 2. Monitoring of other fire safety systems, such as sprinklers 3. Notification of other dangerous conditions, such as carbon monoxide 4. Notification of burglary 5. Any other function, safety related or not, that could share components or wiring How frequently must household fire alarm systems be inspected and tested? - ANS At least every 3 years, by a qualified service technician. If Secondary Battery power was used. How long could it support operating? - ANS 1. Two independent power sources. Primary shall be commercial light and power, secondary is a rechargeable battery. 2. Secondary source must be capable of operating the device for at least 24 hours and 4 minutes of alarm. What do sections 11.5.1.1-3 state? - ANS 11.5.1.2 Where the area addressed in 11.5.1.1(2) "Outside each dwelling unit sleeping area" is separated from the adjacent living areas by a door, a smoke alarm shall be installed in the area between the door and the sleeping rooms, and additional alarms shall be installed on the living area side of the door as specified by 11.5.1.1 and 11.5.1.3 All sleeping and Guest Rooms" "and 11.5.1.1(3)"On every level of a dwelling unit, including basements" where the interior floor area for a given level of a dwelling unit, excluding garage areas, is greater that 93m2 (1000ft2, smoke alarms shall be installed per 11.5.1.3.1 and 11.5.1.3.2 Can an alarm be hooked to an outlet on a switch? - ANS Yes, but the operation of the switch shall not cause loss of primary power. 11.1.5 Chapter 11 of the study guide states "This Chapter shall apply to the life safety of occupants and not to the protection of property" True or False? - ANS TRUE 11.4.2.1 The requirements of Chapter 11 shall assume that occupants already have a what? - ANS Both: Are capable of self-rescue and already have an escape plan. 11.7.6.1 If installed for other functions, fire equipment should not do what to its primary function - ANS Compromise It 11.7.5.6 Household fire alarm system smoke detectors, imitating devices, and notification appliances shall be _____ ___ ______ so that the occurrence of a single open or single ground fault in the interconnection, which prevents normal operation of the interconnected devices, is indicated by a distinctive ______ _______ - ANS Monitored for Integrity, distinctive trouble signal 11.7.7 Are Low Power Wireless Systems allowed to utilize low power WIRING for transmission of signals within the protected dwelling. - ANS Yes 11.7.8.1.1 A DACT serving the protected premises shall only require how many telephone lines? - ANS One 11.8.2.2 (1) can Smoke or heat alarms be interconnected in numbers that exceed the manufacturer's instructions - ANS No 11.8.2.3 A SINGLE FAULT ON TH INTERCONNECTING MEANS BETWEEN MULIPLE STATION ALARMS SHAL NOT PREVENT _______________________________ - ANS Single station operation of any of the interconnected alarms As the mounting location of smokes and heats gets higher, the listed spacing must be reduced. True or False? - ANS False. The higher a heat is positioned, the smaller the spacing. The higher a smoke is positioned, the wider the spacing. Detectors and appliances shall be protected from damage by a mechanical guard as long as...? - ANS It is listed for the purpose and does not interfere with the operation of the device. 11.8.3.2 Peaked Ceilings Smoke alarms or smoke detectors mounted on a peaked ceiling shall be located within ________horizontally of the peak, but not closer that ___________ vertically to the peak - ANS 914mm (36inches), 102mm (4 inches 11.8.3.3 Sloped Ceilings Smoke alarms or smoke detectors mounted on a sloped ceiling having a rise greater than 1 m in 8 m (1 ft. in 8 ft.) horizontally shall be located _______ of the high side of the ceiling, but no closer than ______ from the adjoining wall surface - ANS 914 mm (36 in), 102mm (4in) 11.8.3.5 (2) Smoke alarms and smoke detectors shall not be located within unfinished attics or garages or in other spaces where temperatures can fall below what temperature? - ANS 4C (40(F) or above 38C (100F). 11.8.3.5 (4) Smoke alarms and smoke detectors installed within a _______ horizontal path of a cooking appliance shall be equipped with an alarm silencing means or be of ________. - ANS 6.1m or (20 ft.), the photoelectric type 11.8.3.5 (5) Smoke alarms and smoke detectors shall not be installed within _____ from a door to a bathroom containing a shower or tub. - ANS a 914mm (36 inch) horizontal path 11.8.3.5(7) Smoke alarms and smoke detectors shall not be installed within a _______ from the tip of the blade of a ceiling suspended (paddle) fan. - ANS 914 mm (36 inch) horizontal path 11.8.3.5(8) where stairs lead to other occupied levels, a smoke alarm or detector shall be located so that smoke rising in the stairway __________ - ANS cannot be prevented from reaching the smoke alarm or detector by an intervening door or obstruction 11.8.4.2 For sloped ceilings having a rise greater that 1m in 8 m (1ft in 8 Ft) horizontally, the detector or alarm shall be located within _______ of the peak. The spacing of additional detectors or alarms, if any, shall be based on a horizontal distance measurement, not on a measurement along the slope of the ceiling - ANS .9m (3ft) 11.8.4.5 Detectors or alarms installed on an open joisted ceiling shall have their smooth ceiling spacing reduced where this spacing is measured at right angles to solid joists; in the case of heat detectors or heat alarms, this spacing shall not exceed ___________. - ANS one half of the listed spacing