TCFP Firefighter Chapters 26-28 Test questions and answers

In a preaction sprinkler system, what must happen before water will flow? Select one: A. The alarm condition must persist for a set time B. An alarm initiating device must be activated C. The dry-pipe valve must close D. System water pressure must drop - answer B. An alarm initiating device must be activated Where is a main sprinkler system valve usually installed? Select one: A. On the main riser, below the water supply control valve B. Outside the building, coming up out of the ground on a post C. Near the FDC D. On the main riser, above the water supply control valve - answer D. On the main riser, above the water supply control valve Which class of standpipe is intended for fire department use only? Select one: A. III B. II C. I D. IV - answer C. I Which is a distinguishing feature of old-style sprinkler heads? Select one: A. All heads are of the pendant type B. Only a few activation temperatures are available C. The heads are highly sensitive to pressure fluctuation D. The discharge pattern directs some water onto the ceiling - answer D. The discharge pattern directs some water onto the ceiling Which is a function of a sprinkler head? Select one: A. Detect smoke or fumes B. Activate the fire alarm system C. Report any trouble in the system D. Auto-restore when the fire is out - answer B. Activate the fire alarm system Which is a typical temperature rating for a sprinkler head in a light-hazard occupancy such as an office building? Select one: A. 225°F (107°C) B. 205°F (96°C) C. 185°F (85°C) D. 165°F (74°C) - answer D. 165°F (74°C) Which is the preferred water source for a sprinkler system? Select one: A. An elevated storage tank B. A private fire protection supply system C. A municipal water system D. A dedicated static supply - answer C. A municipal water system Which sprinkler head mechanism uses a liquid-filled glass capsule to hold the cap in place? Select one: A. Liquid capsule B. Frangible bulb C. Chemical pellet D. Fusible device - answer B. Frangible bulb Which type of facility monitors alarms systems located at multiple facilities? Select one: A. Protected premises control center B. Central station C. Remote alarm receiving center D. Supervising alarm center - answer B. Central station Which type of fire alarm annunciation system identifies the zone in which the alarm was initiated audible or visual signals? Select one: A. Individual B. Addressable C. Coded D. Master - answer C. Coded A fire department pumper can supplement a sprinkler system water supply through the: Select one: A. Class I standpipe. B. APV. C. FDC. D. OS&Y. - answer C. FDC. According to NFPA 72, which type of alarm is caused by improper installation of an alarm system? Select one: A. Trouble B. Nuisance C. False D. Unwanted - answer B. Nuisance According to NFPA 72, which type of alarm occurs when an activation of a fire alarm is not the result of a potentially hazardous condition? Select one: A. Trouble B. Tamper C. False D. Nuisance - answer D. Nuisance According to the NFPA, a smoke alarm should be replaced after _____ years from the date of manufacture Select one: A. 3 B. 7 C. 5 D. 10 - answer D. 10 All of the following are standard sprinkler head mounting positions except one. Choose the exception. Select one: A. Sidewall B. Branch C. Pendent D. Upright - answer B. Branch Closing the __________ valve is a method of shutting down the flow of water in a sprinkler system. Select one: A. alarm B. post indicator C. main check D. main water service - answer B. post indicator Fire alarm systems in most high-rise buildings are programmed to alert the occupants located: Select one: A. on the alarm floor and floors immediately below and above the alarm floor. B. on the alarm floor and floor immediately above the alarm floor. C. throughout the entire building. D. on the alarm floor only. - answer A. on the alarm floor and floors immediately below and above the alarm floor. How can an ionization smoke detector be identified? Select one: A. Label stating that it contains carcinogenic material B. Label stating that it contains radioactive material C. Lack of air vents D. Low-profile, pancake shape - answer B. Label stating that it contains radioactive material How does a bimetallic strip work as a heat detector switch? Select one: A. The strip creates a magnetic field when heated, activating a switch B. Electrical resistance through the strip increases when the strip is exposed to heat C. The strip bends unevenly in response to heat, closing a contact D. The strip melts at a certain temperature, interrupting a circuit - answer C. The strip bends unevenly in response to heat, closing a contact How is the tamper alarm on a pull-station connected to the fire alarm system? Select one: A. Through shared wiring B. By radio C. Via remote monitoring station D. There is no such connection - answer D. There is no such connection How prone are heat detectors to false alarms as compared to smoke detectors? Select one: A. Less B. It depends on the application. C. Equally D. More - answer A. Less In a preaction system, one function of the main valve is to act as a: Select one: A. drain. B. tamper switch. C. dam. D. pressure regulator. - answer C. dam. In most cases, how many sprinkler heads will open before a fire is controlled? Select one: A. 3-5 B. 5-8 C. 1-2 D. 2-4 - answer C. 1-2 In which situation is it acceptable for a sprinkler system main control valve not to be locked into the open position? Select one: A. The valve is of the indicating type B. A supervisory switch is installed C. The building has an alarm system D. The valve is located in a locked room - answer B. A supervisory switch is installed In which type of sprinkler system is the piping filled with pressurized air instead of water? Select one: A. Preaction B. Wet C. Deluge D. Dry - answer D. Dry Passive smoke control systems rely primarily on: Select one: A. pressure differentials. B. natural air movement. C. built-in construction barriers. D. existing building HVAC systems. - answer C. built-in construction barriers. Prevention of nuisance alarms due to pressure variations in a sprinkler system water supply is the function of the: Select one: A. alarm valve. B. pressure compensator. C. wet-pipe valve. D. surge chamber. - answer A. alarm valve. Sprinkler heads are classified by their: Select one: A. spray pattern. B. release temperature. C. operating pressure. D. discharge volume. - answer B. release temperature. The combination of working smoke alarms and a residential sprinkler system reduces the chance of a death from a home fire by _____ percent. Select one: A. 75 B. 82 C. 56 D. 66 - answer B. 82 What does activation of a water-motor gong indicate? Select one: A. A fault within the system B. Tampering of the system C. Low system water pressure D. Water flowing in the system - answer D. Water flowing in the system What is a concern when a gaseous suppression system is activated? Select one: A. Cold-related injury B. Oxygen-deficient atmosphere C. Corrosive residue D. Electrically conductive residue - answer B. Oxygen-deficient atmosphere What is a major concern with battery-powered smoke alarms? Select one: A. Occupants ignoring their activation B. False alarm C. Battery replacement D. Occupant removal - answer C. Battery replacement What is the maximum service life of lithium smoke alarm batteries? Select one: A. 18 months B. 12 months C. 5 years D. 10 years - answer D. 10 years What is the most common application for a Halon system? Select one: A. Metal anodizing and plating B. Commercial kitchens C. Sensitive electronic equipment D. Processes producing flammable dust - answer C. Sensitive electronic equipment What is the most common type of fire suppression system? Select one: A. Sprinkler B. Wet chemical C. Standpipe D. Dry chemical - answer A. Sprinkler What is the name of the standardized audio pattern that must be produced by a modern audible fire alarm? Select one: A. Temporal-3 B. Standard chime 4 C. ASA high-low D. ANSI-R9 - answer A. Temporal-3