Chapter 37 Fire Detection, Protection, and Suppression Systems

In which situation is it acceptable for a sprinkler system main control valve not to be locked into the open position? Select one: A. A tamper switch is installed B. The building has an alarm system C. The valve is of the indicating type D. The valve is located in a locked room

A. A tamper switch is installed

What is the most common application for a Halon system? Select one: A. Sensitive electronic equipment B. Metal anodizing and plating C. Processes producing flammable dust D. Commercial kitchens

A. Sensitive electronic equipment

What is the term for heat detectors that are spaced throughout an occupancy, with each detector covering a specific floor area? Select one: A. Spot detectors B. Line detectors C. Remote sensors D. Single stations

A. Spot detectors

A smoke detector should be replaced every _____ years. Select one: A. 4 B. 10 C. 2 D. 6

B. 10

What is the most common type of smoke detector? Select one: A. Ultraviolet B. Infrared C. Ionization D. Photoelectric

C. Ionization

Which of the following is one of the two main types of smoke detectors? Select one: A. Refraction B. Thermoelectric C. Ionization D. Infrared

C. Ionization

Which type of smoke detector is more prone to false alarms from cooking fumes and shower steam? Select one: A. Photoelectric B. Refraction C. Ionization D. Beam application

C. Ionization

Which type of extinguishing system is particularly well suited for use on fires involving cooking oils? Select one: A. Halon B. Dry chemical C. Wet chemical D. Aqueous film-forming foam (AFFF)

C. Wet chemical

Which type of alarm notification system sends a signal to a third-party, off-site monitoring facility? Select one: A. Protected premises B. Proprietary C. Remote station D. Central station

D. Central station

Which part of the fire alarm system alerts the building occupants when the system is activated? Select one: A. Alarm notification device B. Annunciator panel C. Alarm monitoring station D. Alarm initiation device

A. Alarm notification device

What is a major concern with battery-powered smoke alarms? Select one: A. Battery replacement B. False alarm C. Occupants ignoring their activation D. Occupant removal

A. Battery replacement

Which type of smoke detector is used to protect large open areas, such as a church or an auditorium? Select one: A. Beam B. UV C. Line D. Spot

A. Beam

n which type of automatic sprinkler system does water flow from all the sprinkler heads when the system is activated? Select one: A. Deluge B. Dry C. Wet D. Preaction

A. Deluge

What is the primary mechanism by which carbon dioxide extinguishes a fire? Select one: A. Displacing oxygen B. Inhibit the chemical reaction C. Creating a vapor barrier D. Cooling the fuel

A. Displacing oxygen

Which kind of sprinkler system uses accelerators and exhausters? Select one: A. Dry-pipe B. Residential C. Deluge D. Most modern systems

A. Dry-pipe

Which device activates the building fire alarm when water is flowing in a sprinkler system? Select one: A. Flow switch B. Alarm valve C. Activator switch D. Check valve

A. Flow switch

Which statement about flame detectors is correct? Select one: A. Infrared or ultraviolet light sources may trigger a false alarm. B. Flame detectors are generally less expensive than other types of detectors. C. Flame detectors' principle of operation is the detection of ions. D. Flame detectors are usually found in institutional and healthcare occupancies.

A. Infrared or ultraviolet light sources may trigger a false alarm.

Which type of smoke detector is activated by the invisible products of combustion? Select one: A. Ionization B. Photocell C. Photoelectric D. Bimetallic

A. Ionization

What type of false alarm occurs when individuals deliberately activate a fire alarm when there is no fire? Select one: A. Malicious B. False C. Nuisance D. Tamper

A. Malicious

To replace a sprinkler head, what is the next step after the main water supply control valve is closed? Select one: A. Open the drain B. Close the branch line C. Insert a new link or bulb D. Replace the sprinkler head

A. Open the drain

What is a concern when a carbon dioxide system is activated? Select one: A. Oxygen-deficient atmosphere B. Electrically conductive residue C. Cold-related injury D. Corrosive residue

A. Oxygen-deficient atmosphere

Which type of smoke detector is activated by the visible products of combustion? Select one: A. Photoelectric B. Ultraviolet C. Infrared D. Ionization

A. Photoelectric

Which type of heat detector is activated by an increase in temperature that exceeds a set amount over a given period of time? Select one: A. Rate-of-rise heat detector B. Closed-chamber heat detector C. UV sensor D. Fusible link device

A. Rate-of-rise heat detector

Which of the following is a distinguishing feature of old-style sprinkler heads? Select one: A. The discharge pattern directs some water onto the ceiling B. Only a few activation temperatures are available C. The heads are highly sensitive to pressure fluctuation D. All heads are of the pendant type

A. The discharge pattern directs some water onto the ceiling

Which of the following is a feature of a cross-zoned smoke detection system? Select one: A. Two detectors must activate before an alarm is initiated B. Detector activation must be accompanied by water flow detection C. A delay of 30 to 60 seconds separates activation and notification D. A single detector activation will produce a local alarm only

A. Two detectors must activate before an alarm is initiated

What does the "W" stand for in the acronym WPIV? Select one: A. Wall B. Wet C. Water D. Wye

A. Wall

All of the following are standard sprinkler head mounting positions EXCEPT _____. Select one: A. branch B. upright C. sidewall D. pendant

A. branch

In dry-pipe and deluge sprinkler systems, one function of the main valve is to act as a __________. Select one: A. dam B. tamper switch C. pressure regulator D. drain

A. dam

Which of the following is a function of a sprinkler head? Select one: A. Auto-restore when the fire is out B. Activate the fire alarm system C. Report any trouble in the system D. Detect smoke or fumes

B. Activate the fire alarm system

Which type of detector is commonly installed in air return ducts of large buildings? Select one: A. Rate of rise B. Air sampling C. Gas D. Flame

B. Air sampling

How are fire alarm systems in most high-rise buildings programmed to alert the occupants? Select one: A. Alarm floor and floor immediately above the alarm floor B. Alarm floor and floors immediately below and above the alarm floor C. Alarm floor only D. Entire building

B. Alarm floor and floors immediately below and above the alarm floor

What is the term for a manual fire alarm station that requires two separate steps to activate the alarm? Select one: A. Tamper-resistant alarm box B. Double-action pull station C. Two-stage tamper alarm D. Two-stage activation switch

B. Double-action pull station

In which type of sprinkler system is the piping filled with pressurized air instead of water? Select one: A. Preaction B. Dry C. Wet D. Deluge

B. Dry

Which type of detector is typically found in aircraft hangars? Select one: A. Fixed temperature B. Flame C. Beam application D. Line

B. Flame

Which type of sprinkler head uses a metal alloy that melts at a specific temperature? Select one: A. Filament B. Fusible link C. Bimetallic D. Frangible bulb

B. Fusible link

Which type of standpipe is intended for fire department use only? Select one: A. III B. I C. IV D. II

B. I

Which class of standpipe system is unsuitable for use by fire fighters? Select one: A. I B. II C. III D. None of the above

B. II

Which class of standpipe system is intended for use by both building occupants and fire fighters? Select one: A. I B. III C. IV D. II

B. III

Which part of a fire alarm system causes the system to indicate an alarm? Select one: A. Annunciator B. Initiation device C. Sensor D. Indicator

B. Initiation device

How can an ionization smoke detector be identified? Select one: A. Low-profile, pancake shape B. Label stating that it contains radioactive material C. Lack of air vents D. Label stating that it contains carcinogenic material

B. Label stating that it contains radioactive material

Are heat detectors more, less, or equally prone to false alarms as compared to smoke detectors? Select one: A. It depends on the occupancy type B. Less C. Equally D. More

B. Less

Where on a high-rise standpipe system is a flow restriction device located? Select one: A. On all outlets B. On outlets serving the lower floors C. At the base of the riser D. At the FDC

B. On outlets serving the lower floors

Which type of alarm notification system is connected directly to a monitoring site owned and operated by the building's owner? Select one: A. Central station B. Proprietary system C. Remote station system D. Auxiliary system

B. Proprietary system

Which device enables fire fighters to ascertain the type and location of the activated alarm device? Select one: A. Audible alarm indicator B. Remote annunciator C. Pull station D. Remote station

B. Remote annunciator

What is the most common type of fire suppression system? Select one: A. Dry chemical B. Sprinkler C. Hood D. Standpipe

B. Sprinkler

What are the standard connections on an FDC? Select one: A. One female B. Two females C. Two males D. One male

B. Two females

What does activation of a water-motor gong indicate? Select one: A. A fault within the system B. Water flowing in the system C. Low system water pressure D. Tampering of the system

B. Water flowing in the system

Which type of fire alarm annunciation system identifies the zone in which the alarm was initiated both at the alarm control panel and through the audio notification device? Select one: A. Master zoned B. Zoned coded C. Dual channel D. Audio coded

B. Zoned coded

Which type of fire alarm system is most commonly installed in hospitals? Select one: A. Noncoded B. Zoned coded C. Master-coded D. Zoned noncoded

B. Zoned coded

Which type of fire alarm annunciation system identifies the zone in which the alarm was initiated at the alarm control panel only? Select one: A. Nonzoned noncoded B. Zoned noncoded C. Nonzoned D. Noncoded

B. Zoned noncoded

The percentage of blocked light in a beam detector represents the __________ rate. Select one: A. refraction B. obscuration C. diffusion D. diffraction

B. obscuration

Which is a typical activation temperature for a sprinkler head in a light-hazard occupancy such as an office building? Select one: A. 185°F (85°C) B. 225°F (107°C) C. 165°F (74°C) D. 205°F (96°C)

C. 165°F (74°C)

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. 56 B. 75 C. 82 D. 66

C. 82

What is the preferred water source for a sprinkler system? Select one: A. A dedicated static supply B. An elevated storage tank C. A municipal water system D. A private fire protection supply system

C. A municipal water system

In a preaction sprinkler system, what must happen before water will flow? Select one: A. System air pressure must drop B. The dry-pipe valve must open C. A secondary device must be activated D. The alarm condition must persist for a set time

C. A secondary device must be activated

Which fire-extinguishing agent is best suited for use in areas housing computers or electronic equipment? Select one: A. Urea-potassium bicarbonate B. High-expansion foam C. Carbon dioxide D. Monoammonium phosphate

C. Carbon dioxide

A fire department pumper can supplement a sprinkler system water supply through the _____. Select one: A. APV B. Class I standpipe C. FDC D. OS&Y

C. FDC

In which sprinkler head mechanism is the cap held in place by a liquid-filled glass capsule? Select one: A. Liquid capsule B. Fusible device C. Frangible bulb D. Chemical pellet

C. Frangible bulb

What do older heat detectors lack that makes it difficult to track down the cause of an alarm? Select one: A. Wide-spaced combs B. Reset switch C. Indicator light D. Audible alarms

C. Indicator light

Which type of heat detector uses wire or tubing strung along the ceiling of large open areas? Select one: A. Span B. Beam C. Line D. Area

C. Line

Which type of alarm notification system alerts only building occupants? Select one: A. Central station B. Nonzoned noncoded C. Local alarm D. Proprietary

C. Local alarm

Which descriptor accurately summarizes which automatic sprinkler systems will operate without electricity? Select one: A. Systems designed after 1958 B. Deluge C. Most systems D. Pre-action

C. Most systems

Which fire alarm system requires fire fighters to search the entire building to locate the activated initiation device? Select one: A. Master-coded B. Zoned noncoded C. Noncoded D. Zoned coded

C. Noncoded

Which sprinkler system valve uses a threaded shaft to indicate the position of the valve? Select one: A. Post indicator B. Wall post indicator C. Outside stem and yoke D. Inspector's test

C. Outside stem and yoke

Which type of smoke detector is the least prone to producing false alarms due to cooking fumes and shower steam? Select one: A. Ionization B. Infrared C. Photoelectric D. Dual chamber

C. Photoelectric

Which type of automatic sprinkler system requires the activation of a secondary device before water is released into the sprinkler piping? Select one: A. Deluge B. Dry C. Preaction D. Wet

C. Preaction

What is the primary advantage of a preaction sprinkler system? Select one: A. No need to replace sprinkler heads after a discharge B. Automatic system shutdown after extinguishment C. Prevention of accidental water discharges D. Water is at the sprinkler head prior to fire detection

C. Prevention of accidental water discharges

What is the most common type of residential fire safety alarm system? Select one: A. Rate-of-rise heat detector B. Carbon monoxide alarm C. Single-station smoke alarm D. Remote-station smoke alarm

C. Single-station smoke alarm

What is the name of the standardized audio pattern that must be produced by a modern audible fire alarm? Select one: A. High-low B. March Time C. Temporal-3 D. ANSI-R9 audible alarm

C. Temporal-3

How are most smoke detectors restored to non-alarm condition after they have been activated? Select one: A. Recalibrating in a fresh-air environment B. With a special key C. They are self-restoring D. Replacing the detector

C. They are self-restoring

Which smoke detection system features a delay of 30 to 60 seconds between activation and notification? Select one: A. Preaction B. Deferred C. Verification D. Cross-zoned

C. Verification

Which is the most common type of automatic sprinkler system? Select one: A. Dry B. Deluge C. Wet D. Preaction

C. Wet

Sprinkler heads are classified by their ________. Select one: A. discharge volume B. operating pressure C. temperature rating D. spray pattern

C. temperature rating

What is the maximum service life of lithium smoke alarm batteries? Select one: A. 5 years B. 12 months C. 18 months D. 10 years

D. 10 years

What is the purpose of an outside stem and yoke valve? Select one: A. Prevent backflow from the system to the water supply B. Drain the sprinkler system C. Control the water supply to the individual system branches D. Control the water supply to the sprinkler system

D. Control the water supply to the sprinkler system

Which type of sprinkler head has no cap or release mechanism? Select one: A. Atlas B. Fast-response C. Foam D. Deluge

D. Deluge

What is placed on the system side of a dry-pipe valve to quickly remove the air from the dry-pipe system when a sprinkler head activates? Select one: A. Air drain B. Preaction valve C. Accelerator D. Exhauster

D. Exhauster

Which part of the fire alarm system manages and monitors the proper operation of the system? Select one: A. Alarm status indicator board B. Remote annunciator panel C. Central monitoring panel D. Fire alarm control panel

D. Fire alarm control panel

Which type of heat detector must be replaced after activation? Select one: A. Flame B. Spot C. Bimetallic D. Fixed temperature

D. Fixed temperature

Which type of false alarm is caused by improper functioning of an alarm system? Select one: A. False B. Unwanted C. Trouble D. Nuisance

D. Nuisance

Where is the main sprinkler system valve usually installed? Select one: A. Outside the building, coming up out of the ground on a post B. On the main riser, below the water supply control valve C. Near the FDC D. On the main riser, above the water supply control valve

D. On the main riser, above the water supply control valve

Which type of alarm notification system sends an alarm signal directly to the fire department? Select one: A. Central station B. Proprietary system C. Local alarm system D. Remote station system

D. Remote station system

What is the term for the system of inlets, pipes, and outlets built into a structure to supply water to fire hoses? Select one: A. Building riser B. Dry pipe C. Stairwell pipe D. Standpipe

D. Standpipe

How does a bimetallic strip work as a heat detector switch? Select one: A. The strip melts at a certain temperature, interrupting a circuit B. Electrical resistance through the strip increases when the strip is exposed to heat C. The strip creates a magnetic field when heated, activating a switch D. The strip deforms in response to heat, opening or closing a switch

D. The strip deforms in response to heat, opening or closing a switch

What should occur if there is a fault in the fire alarm system? Select one: A. The alarm system should activate B. The system should shut down C. The system should automatically reset D. The trouble alarm should sound

D. The trouble alarm should sound

How is a pull-station tamper alarm connected to the fire alarm system? Select one: A. By radio B. Through shared wiring C. Via remote monitoring station D. There is no such connection

D. There is no such connection

Which type of automatic sprinkler system cannot be used in locales where building temperatures drop below freezing? Select one: A. Deluge B. Dry C. Preaction D. Wet

D. Wet

Which type of automatic sprinkler system is usually installed in residential settings? Select one: A. Dry B. Preaction C. Wet Correct D. Zoned

D. Zoned

Prevention of nuisance alarms due to pressure variations in a sprinkler system is the function of the __________. Select one: A. pressure compensator B. wet-pipe valve C. surge chamber D. alarm valve

D. alarm valve

Closing the_____ valve is the correct method of shutting down the flow of water in a sprinkler system. Select one: A. main check B. alarm C. main water service D. post indicator

D. post indicator