Fire 50 Test (Chapter 19-20)

The purpose of a fire alarm system is to:
A. prevent flashover in the room of fire origin.
B. control fires in early stages while still small.
C. notify building occupants of an emergency condition.
D. provide means for deploying fire hoses remote from fire apparatus.
Click the card to flip 👆
1 / 89
Terms in this set (89)
The purpose of a fire alarm system is to:
A. prevent flashover in the room of fire origin.
B. control fires in early stages while still small.
C. notify building occupants of an emergency condition.
D. provide means for deploying fire hoses remote from fire apparatus.
C. notify building occupants of an emergency condition.
(1178)
Which alarm system component serves as the "brain" for the fire alarm system?
A. Initiating device
B. Primary power supply
C. Notification appliance
D. Fire alarm control panel
D. Fire alarm control panel
(1178)
The fire alarm control panel:
A. is required to be red with white lettering.
B. contains electronics that control and monitor the fire alarm system.
C. senses the products of combustion or other hazardous conditions.
D. notifies occupants of an emergency condition through visual text or symbols.
B. contains electronics that control and monitor the fire alarm system.
(1178)
The primary power to the alarm system is obtained from:
A. auxiliary generators.
B. a local utility provider.
C. batteries with chargers.
D. a special radio frequency.
B. a local utility provider.
(1178)
Which fire alarm component sends a signal to the fire alarm control panel?
A. Initiating device
B. Notification appliance
C. Remote annunciator panel
D. Textual notification appliances
A. Initiating device
(1180)
After receiving a signal from an initiating device, the control panel activates:
A. a manual pull station.
B. notification appliances.
C. secondary power supplies.
D. the contacts in a frangible bulb.
B. notification appliances.
(1180)
Which is the most common category of notification appliances?
A. Visual
B. Textual
C. Tactile
D. Audible
D. Audible
(1180)
Strobe lights are an example of which notification appliance category?
A. Visual
B. Textual
C. Conductive
D. Addressable
A. Visual
(1180)
The fire command center:
A. senses products of combustion.
B. serves as the connection point for power and fire alarm circuits.
C. consolidates all fire protection system controls for a structure in one room.
D. ensures the fire alarm system will operate if the primary power supply fails.
C. consolidates all fire protection system controls for a structure in one room.
(1181)
Which type of alarm signaling system is designed to provide notification to building occupants on the immediate premises?
A. Central station
B. Remote receiving
C. Protected premises
D. Supervising station
C. Protected premises
(1182)
The fire alarm control panel in a (an) ___ system is not capable of identifying the initiating device that triggered the alarm. A. coded alarm B. noncoded alarm C. addressable alarm D. annunciated alarmB. noncoded alarm (1182)A zoned/annunciated alarm system: A. allows for quick location and correction of malfunctions in the system. B. is not capable of identifying the initiating device that activated the alarm. C. enables responders to identify the general location of alarm activation. D. displays the location of each initiating device on a fire alarm control panel.C. enables responders to identify the general location of alarm activation. (1183)Which type of protected premises alarm system allows responders to pinpoint the specific initiating device that was activated? A. Zoned alarm B. Noncoded alarm C. Addressable alarm D. Annunciated alarmC. Addressable alarm (1183)A ___ alarm system continuously monitors a remote location. A. passive B. preaction C. supervising station D. protected premisesC. Supervising station (1183)Which of the following supervising station alarm systems is connected to a municipal fire alarm system? A. Proprietary system B. Protected premises C. Auxiliary alarm system D. Central station systemC. Auxiliary alarm system (1184)Which type of supervising station alarm system is an extension of the municipal alarm circuit into protected property? A. Shunt system B. Municipal utility C. Proprietary system D. Local energy systemA. shunt system (1184)How are remote receiving systems connected to the emergency services telecommunications center? A. A runner service B. Dedicated system wiring C. The municipal alarm box system D. A telephone line or dedicated radio frequencyD. A telephone line or dedicated radio frequency (1184)Smoke detector vs Smoke Alarm (Could not find)Smoke detector - Senses smoke and sends signal to notification device Smoke alarm - A combination of a smoke detector and a notification deviceCombination device alarmsInitiating device + Notification DeviceWhich of the following is a manually-activated alarm-initiating device? A. House line B. Pull station C. Fusible link D. Smoke detectorB. Pull station (1185)Manual Initiating DeviceAlarm system component that transmits a signal when a change occurs; change may be the result of an action such as the activiation of a manual fire alarm box, the presence of products of combustion in the atmosphere, or the automatic activation of a supervisory switchWhich of the following statements about fixed temperature heat detectors is MOST accurate? A. Fixed temperature heat detectors are most prone to false activations. B. Fixed temperature heat detectors should be installed at eye level or below. C. Fixed temperature heat detectors use photoelectric cells to initiate an alarm signal. D. Fixed temperature heat detectors can be the slowest to activate, depending on installation location.D. Fixed temperature heat detectors can be the slowest to activate, depending on installation location. (1186)Fixed-temperature heat detectors are activated by expansion of heated material, changes in resistance of heated material, and: A. initiation of water flow. B. melting of heated material. C. refraction/diffusion of light. D. ionization of radioactive material.B. melting of heated material. (1186)A frangible bulb heat detector is activated when: A. a beam of light is reflected onto a photoelectric cell to complete a circuit. B. ionized molecules make air less conductive, causing a decrease in current. C. a chemical pellet melts, releasing a pressurized plunger to complete a circuit. D. a small glass vial breaks when heated, allowing electrical contacts to complete a circuit.D. a small glass vial breaks when heated, allowing electrical contacts to complete a circuit. (1186-1187)Which heat detector uses two metals, one which expands faster than the other when heated, to break a circuit and send a signal to the fire alarm control panel? A. Bimetallic detector B. Ultraviolet detector C. Fusible link detector D. Continuous line detectorA. Bimetallic detector (1187)Which alarm-initiating device is activated by a rise in temperature of 12°F to 15°F (7°C to 8°C) in one minute? A. Infrared wave detector B. Continuous line detector C. Photoelectric cell detector D. Rate-of-rise heat detectorD. Rate-of-rise heat detector (1188)Which of the following statements about rate-of-rise detectors is MOST accurate? A. Rate-of-rise detectors are not suitable for areas where arc welding is done. B. Rate-of-rise detectors are also known as visible products-of-combustion detectors. C. Rate-of-rise detectors are less reliable than fixed-temperature detectors, and are frequently subject to false activations. D. Rate-of-rise detectors can initiate an alarm at a temperature below that required for initiating fixed temperature devices.D. Rate-of-rise detectors can initiate an alarm at a temperature below that required for initiating fixed temperature devices. (1188)Which rate-of-rise detector uses self-contained pneumatic sensors to monitor specific locations? A. Waterflow alarm detector B. Rate-compensated heat detector C. Pneumatic rate-of-rise line detector D. Pneumatic rate-of-rise spot detectorD. Pneumatic rate-of-rise spot detector (1189)Which type of rate-of-rise detector uses a system of thermistors that produce a change in electrical resistance when exposed to heat? A. Rate-compensated detector B. Electronic spot-type heat detector C. Pneumatic rate-of-rise line detector D. Pneumatic rate-of-rise spot detectorB. Electronic spot-type heat detector (1190)Which of the following statements about smoke detectors is MOST accurate? A. Smoke detectors initiate an alarm much slower than heat detectors. B. In most cases, smoke detectors are installed in nonresidential and large multi-family occupancies. C. Smoke detectors are self-contained units capable of both detecting smoke and sounding an alarm. D. Typically, smoke detectors are installed in single-family residences and smaller multi-family occupancies.B. In most cases, smoke detectors are installed in nonresidential and large multi-family occupancies. (1190)Which of the following statements about photoelectric smoke detectors is MOST accurate? A. Photoelectric smoke detectors are ineffective at detecting Class C fires. B. Photoelectric smoke detectors use a photoelectric cell coupled with ambient room light. C. Photoelectric smoke detectors must be manually reset when conditions return to normal. D. Photoelectric smoke detectors usually respond more quickly to smoldering fires than do ionization-type detectors.D. Photoelectric smoke detectors usually respond more quickly to smoldering fires than do ionization-type detectors. (1190)Which type of photoelectric smoke detector focuses a beam of light across the monitored area into a cell, and initiates an alarm when the beam is obscured? A. Ionization smoke detector B. Projected-beam smoke detector C. Light-emitting diode smoke detector D. Refractory application smoke detectorB. Projected-beam smoke detector (1191)Which of the following statements about ionization smoke detectors is MOST accurate? A. Ionization smoke detectors detect tiny amounts of radioactive material emitted by burning fuel. B. Ionization smoke detectors generally respond faster to smoldering than to flaming fires. C. Ionization smoke detectors detect products of combustion using tiny amounts of radioactive material. D. Ionization smoke detectors are sensitive to sunlight, and are usually installed in fully enclosed areas.C. Ionization smoke detectors detect products of combustion using tiny amounts of radioactive material. (1191)Which of the following statements about power sources of smoke detectors/alarms is MOST accurate? A. Smoke detectors/alarms may be powered only by batteries. B. Hard-wired alarms are more reliable in areas with frequent power failures. C. Smoke detectors/alarms may be powered only by dedicated electrical feeds. D. State, provincial, and local laws may require that smoke detectors/alarms be hard-wired.D. State, provincial, and local laws may require that smoke detectors/alarms be hard-wired. (1193)Which of the following statements about flame detectors is MOST accurate? A. Infrared flame detectors can be designed to be sensitive to only light produced by hostile fires. B. Ultraviolet flame detectors are recommended for areas where intense mercury-vapor lamps are used. C. Infrared flame detectors are virtually insensitive to sunlight, and can be used in areas not suitable for ultraviolet detectors. D. Ultraviolet flame detectors are virtually insensitive to sunlight, and can be used in areas not suitable for infrared detectors.D. Ultraviolet flame detectors are virtually insensitive to sunlight, and can be used in areas not suitable for infrared detectors. (1193)Which type of alarm-initiating device is activated in the presence of carbon dioxide, carbon monoxide, and other gases produced by fires in confined spaces? A. Heat detector B. Flame detector C. Fusible detector D. Fire-gas detectorD. Fire-gas detector (1193)Which of the following statements about fire-gas detectors is MOST accurate? A. Fire-gas detectors are also called visible products-of-combustion detectors. B. Fire-gas detectors initiate alarm signals faster than any other type of detector. C. Fire-gas detectors can be designed to be sensitive to only gases produced by hostile fires. D. For general detection, fire-gas detectors monitor levels of hydrogen chloride and hydrogen cyanide in the air.C. Fire-gas detectors can be designed to be sensitive to only gases produced by hostile fires. (1194)Which of the following statements about sprinkler systems is MOST accurate? A. Sprinkler system design and installation criteria are found in NFPA® 14. B. The two general types of sprinkler systems are integrated and disintegrated. C. Sprinkler systems are designed to provide means for rapid deployment of hose lines. D. Sprinkler systems are designed to extinguish a fire or prevent its spread until firefighters arrive.D. Sprinkler systems are designed to extinguish a fire or prevent its spread until firefighters arrive. (1194)A sprinkler system minimum design area is based on: A. the response time of the nearest fire station. B. the size of pipe available to be used in the installation. C. the minimum number of sprinklers that might be expected to activate. D. the assumption that only a portion of the sprinklers will activate at one time.D. the assumption that only a portion of the sprinklers will activate at one time. (1195)Which of the following statements about the effects of sprinkler systems on life safety is MOST accurate? A. Sprinkler systems have little effect of the safety of firefighters. B. Sprinkler systems alone are enough to protect occupants from smoke. C. Sprinklers are ineffective in reducing the upward spread of a fire in multistory buildings. D. Sprinklers discharge water directly onto a fire while it is still small, limiting the products of combustion.D. Sprinklers discharge water directly onto a fire while it is still small, limiting the products of combustion. (1195)The ___ is the vertical piping to which the one-way check valve, alarm valve, and main drain are attached. A. riser B. feed main C. cross main D. fire department connectionA. riser (1196)The sprinkler system feed main is: A. the direct service to a number of branch lines. B. the pipe connecting the riser to the cross mains. C. vertical piping to which other components are attached. D. the piping that connects a spray nozzle to the cross mains.B. the pipe connecting the riser to the cross mains. (1196)Sprinklers' temperature ratings can be identified by: A. the size of the frangible bulb. B. the color-coded sprinkler frame arms. C. the temperature stamped on the chemical pellet. D. the temperature stamped on a brass tag hung on the stem.B. the color-coded sprinkler frame arms. (1197)Which of the following statements about sprinklers is MOST accurate? A. Sprinklers open in response to water pressure. B. Sprinklers are fixed spray nozzles opened individually in response to heat. C. Sprinklers are rated according to the flow rate at which they are designed to operate. D. Early-suppression fast-response sprinklers open nearly twice as fast as traditional sprinklersB. Sprinklers are fixed spray nozzles opened individually in response to heat. (1196)Which sprinkler release mechanism has a valve cap held in place by a small piece of solder that melts to release pressure and open the valve? A. Fusible link B. Frangible bulb C. Bimetallic strip D. Chemical pelletD. Chemical pellet (1198)Sprinkler deflectors serve to: A. direct water flow downward. B. support the piping and sprinklers. C. protect sprinklers from dust and debris. D. direct water flow upward toward the ceiling.A. direct water flow downward. (1198)Which type of sprinkler deflector discharges most of the water to one side, and is used when it is necessary to install a sprinkler on the wall or at the side of a room? A. Flush B. In-rack C. Sidewall D. PendantC. Sidewall (1198)Which sprinkler orientation type is installed in a housing within the ceiling and has all or part of the sprinkler (except the threaded shank) in the housing? A. Flush B. Upright C. Recessed D. ConcealedC. Recessed (1198)In accordance with NFPA® 13, a sprinkler storage cabinet must contain: A. the inspector's test valve. B. building plans and system diagrams. C. six sprinklers and a sprinkler wrench. D. a copy of the department preincident plan.C. six sprinklers and a sprinkler wrench. (1198)The main control valve is used to: A. simulate actuation of the system. B. stop supplying water to the system. C. initiate an alarm when water begins to flow. D. drain water from the system for maintenance.B. stop supplying water to the system. (1200)Which type of indicating valve extends horizontally through the wall with the target and valve operating nut outside of the building? A. Outside stem and yoke B. Post indicator valve (PIV) C. Wall post indicator valve (WPIV) D. Post indicator valve assembly (PIVA)C. Wall post indicator valve (WPIV) (1201)Which type of indicating valve has a hollow metal post housing the valve stem with a moveable plate visible through a small glass window on the side? A. Outside stem and yoke B. Post indicator valve (PIV) C. Circular disk-and-plate valve D. Post indicator valve assembly (PIVA)B. Post indicator valve (PIV) (1200-1201)The sprinkler system operating alarm test valve: A. may be used to check the water supply. B. is used to simulate actuation of one sprinkler. C. is located in a remote part of the sprinkler system. D. can be used to simulate actuation of the sprinkler system.D. can be used to simulate actuation of the sprinkler system. (1201)Which sprinkler system operating valve is equipped with the same size orifice as a sprinkler and is used to simulate the actuation of one sprinkler? A. Alarm test valve B. Main drain valve C. Main control valve D. Inspector's test valveD. Inspector's test valve (1201)What is the purpose of a sprinkler system waterflow alarm? A. Initiate alarm when water begins to flow. B. Initiate alarm when water flow exceeds rated flow. C. Initiate alarm when water reaches end of sprinkler lines. D. Initiate alarm when water pressure exceeds rated pressure.A. Initiate alarm when water begins to flow. (1202)Which of the following statements about the sprinkler system water supply is MOST accurate? A. The water supply must be designed to supply all sprinklers on the system. B. The fire department cannot connect to the sprinkler system during operation. C. A fire pump is typically incorporated into the system to ensure adequate water pressure and volume. D. The minimum water supply must deliver the required volume of water to the sprinkler nearest the control valve at the system rated pressure.C. A fire pump is typically incorporated into the system to ensure adequate water pressure and volume. (1202)Which of the following statements about fire department connections is MOST accurate? A. Fire department connects should be supplied from pumpers with a capacity of 100 gpm (400 L/min) or greater. B. Fire department preincident plans may identify the pressure at which the sprinkler system will be supported by pumpers. C. Fire department pumpers supplying connects should connect to hydrants on the same main as the sprinkler system supply. D. Fire department connect check valves allow sprinkler system water to flow freely back through the fire department connect.B. Fire department preincident plans may identify the pressure at which the sprinkler system will be supported by pumpers. (1203)Which type of sprinkler system contains water under pressure at all times so a sprinkler will immediately discharge water spray and activate an alarm? A. Deluge system B. Dry-pipe system C. Wet-pipe system D. Clean-agent systemC. Wet-pipe system (1204)In which type of sprinkler system does air or nitrogen under pressure replace the water in the sprinklers above a valve? A. Deluge system B. Dry-pipe system C. Wet-pipe system D. Water curtain systemB. Dry-pipe system (1204)Which of the following BEST describes deluge sprinkler systems? A. Use extinguishing agent other than water for use in specific occupancies B. Contain air or nitrogen under pressure, air escapes when sprinkler system is initiated C. Contain water under pressure, two gauges read pressure above and below activation valve D. Designed with open-head sprinklers to quickly supply a large volume of water to the protected areaD. Designed with open-head sprinklers to quickly supply a large volume of water to the protected area (1205)Which of the following system types is typically used where it is important to prevent water damage? A. Dry-pipe system B. Preaction system C. Water-mist system D. Partial deluge systemB. Preaction system (1207)1. The area of origin is the location (1145): A. where the fire began. B. with the most charring. C. where ignition took place. D. with places where fire patterns can be determined.A. where the fire began (1145)Which of the following is an indicator of fire cause? (1146) A. Smoke B. Fuel source C. Extinguisher D. Water supplyB. Fuel Source (1146)Control of all evidence must be maintained as part of the ___ required in legal cases. (1146) A. area of origin B. chain of custody C. fire investigation D. collection of evidenceB. chain of custody (1146)Where should a firefighter or investigator start searching for area of origin for a structure fire? (1147) A. Inside the burned area B. Outside of the structure C. Left of the burned area D. Right of the unburned areaB. Outside of the Structure (1147)When working on interior examination a firefighter should work from: (1148) A. the right side of the structure to the left side. B. the left side of the structure to the right side. C. area of greatest damage to area of least damage. D. area of least damage to area of greatest damage.D. area of least damage to area of greatest damage. (1148)Which of the following may appear on floors and indicate where fuel burned in that location? (1148) A. Debris B. Charring C. Flashover D. Fire patternB. Charring (1148)Which of the following statements is MOST accurate about total structural fire loss? (1150) A. Fire indicators will exist. B. Ventilation factors can be determined. C. There is no need for a fire investigation. D. It is difficult to locate the greatest damage.D. It is difficult to locate the greatest damage.Which of the following should a firefighter know when dealing with ground cover fires? (1150) A. Topography B. Time of day C. Manmade barriers D. Number of people involvedA. TopographyWhich of the following factors affect the rate and direction of the spread of exterior fires? (1150) A. Time of day B. Wind direction C. Basic fire behavior D. Unburned materialB. Wind Direction (1150)Which of the following statements is MOST accurate about exterior fires? (1150) A. The area of origin may display unburned materials. B. All sides of grass stems and tree trunks will be burnt. C. Grass will fall away from the area of origin as it burns. D. White ash appears on the underside of remaining debris.A. The area of origin may display unburned materials (1150)Air bags in a vehicle fire should be: (1152) A. purposely deployed for testing. B. not handled to preserve evidence. C. deployed while conducting a survey. D. inoperable before beginning interior survey.D. Inoperable before beginning interior survey (1152)To determine fire cause a firefighter should look for: (1153) A. evidence and debris. B. an ignition source and sequence. C. the most charring and spoliation. D. witnesses and suspicious individuals.B. An ignition source and sequence (1153)Which type of fire cause occurs when humans are not involved in the ignition process? (1154) A. Natural B. Accidental C. Incendiary D. UndeterminedA. Natural (1154)Which type of fire cause is used when specific cause has not been determined? (1154) A. Natural B. Accidental C. Incendiary D. UndeterminedD. Undetermined (1154)What is the MOST obvious sign of fire cause? (1155) A. Large amount of debris B. Consistent fire pattern C. Competent ignition source D. Considerable amount of charringC. Competent ignition sourceSigns of arson are determined when initial cause is indicated as: (1156) A. exterior or interior fire. B. structure or vehicle fire. C. natural or accidental fire. D. incendiary or undetermined fire.D. incendiary or undetermined fire. (1156)Which of the following may have an effect on the natural path of fire spread? (1157) A. Burglary tools B. Containers or cans C. Wind direction and velocity D. Time of arrival and extent of fireC. Wind direction and velocity (1157)What information should be noted about unusual odors during a fire investigation? (1158) A. If the odor was not present during the fire B. If the odor has an aroma of something similar to smoke C. If the odor can be detected after coming out of the smoke D. If the odor is more than 20 feet (6.1 m) outside of the structureC. If the odor can be detected after coming out of the smokeWhich of the following signs of arson may be used to allow fire spread? (1158) A. Trailers B. Fire patterns C. Unusual odors D. Structural alterationsD. Structural AlterationsPreserving evidence is the responsibility of: (1159) A. firefighters only. B. police officers only. C. fire investigators only. D. fire officers and firefighters.D. fire officers and firefighters. (1159)Who may have to adjust security measures in place or implement additional measures? (1160) A. Police officer B. Fire investigator C. Fire officers and firefighters D. Police officers and firefightersB. Fire investigator (1160)The perimeter of a structure fire may be expanded to encompass the area surrounding the building and: (1160) A. where odors are most prominent. B. the farthest piece of debris found. C. most of the inside of the structure. D. any potential evidence that is located outside.D. Any potential evidence that is located outside. (1160)Which of the following statements is MOST accurate about procedures for criminal investigation? (1161) A. As long as a log is kept, anyone can enter the perimeter scene. B. The staging area should be within the perimeters of the scene. C. A log should be kept of all authorized persons who enter and leave incident perimeter. D. Evidence should be marked after the examination, documentation, and collection has occurred.C. A log should be kept of all authorized persons who enter and leave incident perimeter. (1161)Firefighters should keep evidence ___ until investigator arrives. (1162) A. clean B. hidden C. untouched D. under lock and keyC. untouched (1162)How are overhaul operations detrimental to an investigation? (1162) A. It can secure evidence. B. It can destroy evidence. C. It can shelter evidence. D. It can preserve evidence.B. It can destroy evidence (1162)Which of the following is a potential source of contamination during evidence preservation? (1163) A. Clearing out loose debris B. Charred documents that are unreadable C. Smoking materials that have been dropped D. Damaged equipment while putting out the fireC. Smoking materials that have been dropped (1163)Which of the following occurs when movement, change, or alteration of evidence prevents obtaining value? (1164) A. Spoliation B. Alteration C. Limitation D. DetoxificationA. Spoliation (1164)A structure may be secured and turned over to the owner/occupant once a fire is out and: (1164) A. debris is cleared. B. investigation is completed. C. charred evidence is secured. D. written documents are obtainedB. investigation is completed. (1164)