Chapter 26 Fire Detection Suppression and Smoke Control Systems

Question 1

A device that speeds up the removal of the air from a dry pipe or preaction sprinkler system. An ___________ reduces the time required for water to start flowing from sprinkler heads.

Answer 1

Accelerator

Question 2

A system that captures a sample of air from a room or enclosed space and passes it through a smoke detection or gas analysis device.

Answer 2

Air sampling detector

Question 3

An automatic or manually operated device in a fire alarm system that, when activated, causes the system to indicate an alarm condition.

Answer 3

Alarm initiating device

Question 4

An audible and/or visual device in a fire alarm system that makes occupants or other persons aware of an alarm condition.

Answer 4

Alarm notification appliance

Question 5

A valve that signals an alarm when a sprinkler head is activated and prevents nuisance alarms caused by pressure variations.

Answer 5

Alarm valve

Question 6

A feature of automatic fire detection and alarm systems to reduce unwanted alarms wherein smoke detectors report alarm conditions for a minimum period of time or confirm alarm conditions within a given time period after being reset, in order to be accepted as a valid alarm initiation signal.

Answer 6

Alarm verification feature

Question 7

A standpipe system permanently attached to a water supply capable of supplying the system demand at all times, containing air or nitrogen under pressure, the release of which opens a dry pipe valve to allow water to flow into the piping system and out of the opened hose valve.

Answer 7

Automatic dry standpipe system

Question 8

The working ends of a sprinkler system, which serve to activate the system and to apply water to the fire.

Answer 8

Automatic sprinkler heads

Question 9

A system of pipes filled with water under pressure that discharges water immediately when a sprinkler head opens.

Answer 9

Automatic sprinkler system

Question 10

A standpipe system containing water at all times that is attached to a water supply capable of supplying the system demand and that requires no action other than opening a hose valve to provide water at hose connections.

Answer 10

Automatic wet standpipe system

Question 11

A smoke detection device that projects a narrow beam of light across a large open area from a sending unit to a receiving unit. When the beam is interrupted by smoke, the receiver detects a reduction in light transmission and activates the fire alarm.

Answer 11

Beam detector

Question 12

A device with components made from two distinct metals that respond differently to heat. When heated, the metals will bend or change shape.

Answer 12

Bimetallic strip

Question 13

A fire suppression system designed to protect either a single room or series of rooms by flooding the area with carbon dioxide.

Answer 13

Carbon dioxide extinguishing system

Question 14

A system or group of systems in which the operations of circuits and devices are transmitted automatically to, recorded in, maintained by, and supervised from a listed central station that is controlled and operated by a person, firm, or corporation whose business is the furnishing, maintaining, or monitoring or supervised alarm systems.

Answer 14

Central station service alarm system

Question 15

A sprinkler head activated by a chemical pellet that liquefies at a preset temperature.

Answer 15

Chemical-pellet sprinkler head

Question 16

A standpipe system designed for use by fire department personnel only. Each outlet should have a valve to control the flow of water and a 2.5-in (65-mm) male coupling for fire hose.

Answer 16

Class I standpipe

Question 17

A standpipe system designed for use by occupants of a building only. Each outlet is generally equipped with a length of 1.5-in. (38-mm) single-jacket hose and a nozzle, which are preconnected to the system.

Answer 17

Class II standpipe

Question 18

A combination system that has features of both Class I and Class II standpipes.

Answer 18

Class III standpipe

Question 19

A self-contained extinguishing system that expels an electrically nonconducting, volatile, or gaseous fire extinguishant that does not leave a residue upon evaporation.

Answer 19

Clean agent extinguishing system

Question 20

A fire alarm system design that divides a building or facility into zones and has audible notification devices that can be used to identify the area where an alarm originated.

Answer 20

Coded system

Question 21

A fire alarm system design that divides a building or facility into zones and has audible notification devices that can be used to identify the area where an alarm originated.

Answer 21

Cross-zoned system

Question 22

A sprinkler head that has no release mechanism; the orifice is always open.

Answer 22

Deluge head

Question 23

A sprinkler system employing open sprinklers or nozzles that are attached to a piping system that is connected to a water supply through a valve that is opened by the operation of a detection system installed in the same areas as the sprinklers or the nozzles. When this valve opens, water flows into the piping system and discharges from all sprinklers or nozzles attached thereto.

Answer 23

Deluge sprinkler system

Question 24

A water supply control valve intended to be operated by actuation of an automatic detection system that is installed in the same area as the discharge devices.

Answer 24

Deluge valve

Question 25

A manual fire alarm activation device that requires two steps to activate the alarm. The user must push in a flap, lift a cover, or break a piece of glass before activating the alarm.

Answer 25

Double-action pull station

Question 26

An automatic fire-extinguishing system that discharges a dry-chemical agent.

Answer 26

Dry-chemical extinguishing system

Question 27

A sprinkler system employing automatic sprinklers that are attached to a piping.

Answer 27

Dry pipe sprinkler system

Question 28

The valve assembly on a dry pipe sprinkler system that prevents water from entering the system until the air pressure is released.

Answer 28

Dry pipe valve

Question 29

A type of smoke detector that samples the air through the air distribution system ductwork or plenum; upon detecting smoke, the detector sends a signal to shut down the air distribution unit, close any associated smoke damper, or initiate smoke control system operation.

Answer 29

Duct detector

Question 30

A sprinkler head designed to react quickly and suppress a fire in its early stages.

Answer 30

Early-suppression fast-response sprinkler head (ESFR)

Question 31

A device that accelerates the removal of the air from a dry pipe or preaction sprinkler system.

Answer 31

Exhauster

Question 32

A warning signal that alerts occupants of a fire emergency.

Answer 32

Fire alarm

Question 33

A component of the fire alarm system, provided with primary and secondary power sources, which receives signals from initiating devices or other fire alarm control units and processes these signals to determine part of all of the required fire alarm system output function(s).

Answer 33

Fire alarm control unit (FACU)

Question 34

A signal that results from the manual or automatic detection of a fire alarm condition.

Answer 34

Fire alarm signal

Question 35

A connection through which the fire department can pump supplemental water into the sprinkler system, standpipe, or other system furnishing water for fire extinguishment to supplement existing water supplies.

Answer 35

Fire department connection (FDC)

Question 36

Any fire alarm device or system or fire-extinguishing device or system, or combination thereof, that is designed and installed for detecting, controlling, or extinguishing a fire or otherwise alerting occupants, or the fire department, or both.

Answer 36

Fire protection system

Question 37

A device that responds when its operating element become heated to a predetermined level.

Answer 37

Fixed-temperature heat detector

Question 38

A radiant energy-sensing fire detector that detects the radiant energy emitted by a flame.

Answer 38

Flame detector

Question 39

A sprinkler head with a liquid-filled bulb. The sprinkler head becomes activated when the liquid is heated and the glass bulb breaks.

Answer 39

Frangible-bulb sprinkler head

Question 40

A sprinkler head with an activation mechanism that incorporates two pieces of metal held together by low-melting-point solder. When the solder melts, it releases the link, and water begins to flow.

Answer 40

Fusible-link sprinkler head

Question 41

A device that detects the presence of a specified gas concentration. ___ ________s can be either spot-type or line-type detectors.

Answer 41

Gas detector

Question 42

A system often installed in areas where computers or sensitive electronic equipment is used or where valuable documents are stored.

Answer 42

Gaseous suppression system

Question 43

A liquefied gas extinguishing agent that extinguishes fire by chemically interrupting the combustion reaction between fuel and oxygen. ___________ ______ leave no residue.

Answer 43

Halogenated agents

Question 44

A fire detector that detects either abnormally high temperature or rate of temperature rise or both.

Answer 44

Heat detector

Question 45

The principle of using a small amount of radioactive material to ionize the air between two differentially charged electrodes to sense the presence of smoke particles. Smoke particles entering the ionization volume decrease the conductance of the air by reducing ion mobility. The reduced conductance signal is processed and used to convey an alarm condition when it meets preset criteria.

Answer 45

Ionization smoke detection

Question 46

Wire or tubing that can be strung along the ceiling of large open areas to detect an increase in heat.

Answer 46

Line detector

Question 47

An unwanted activation of an alarm initiating device caused by a person acting with malice.

Answer 47

Malicious alarm

Question 48

A standpipe system with no permanently attached water supply that relies exclusively on the fire department connection to supply the system demand.

Answer 48

Manual dry standpipe system

Question 49

A device with a switch that either opens or closes a circuit, activating the fire alarm.

Answer 49

Manual pull station

Question 50

An alarm system that provides no information at the alarm control unit indicating where the activated alarm is located.

Answer 50

Noncoded alarm

Question 51

An unwanted activation of a signaling system or an alarm initiating device in response to a stimulus or condition that is not the result of a potentially hazardous condition.

Answer 51

Nuisance alarm

Question 52

A measure of the percentage of light transmission that is blocked between a sender and a receiver unit.

Answer 52

Obscuration rate

Question 53

A sprinkler control valve with a valve stem that moves in and out as the valve is opened or closed.

Answer 53

Outside screw and yoke (OS&Y) valve

Question 54

A sprinkler head designed to be mounted on the underside of sprinkler piping so that the water stream is directed in a downward direction.

Answer 54

Pendent sprinkler head

Question 55

A detector that use a light beam and a photocell to detect larger visible particles of smoke. When visible particles of smoke enter the inner chamber, they reflect some of the light onto the photocell, thereby activating the alarm.

Answer 55

Photoelectric smoke detector

Question 56

A sprinkler control valve with an indicator that reads either open or shut depending on its position.

Answer 56

Post indicator valve (PIV)

Question 57

A sprinkler system employing a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers.

Answer 57

Preaction sprinkler system

Question 58

A type of sprinkler system valve that holds back water until a manual emergency release is activated, a fire sprinkler head activates, a fire detector activates, or a combination of sprinkler head and initiating device activation takes place.

Answer 58

Preaction valve

Question 59

A fire alarm system that transmits a signal to a monitoring location owned and operated by the facility’s owner.

Answer 59

Proprietary supervising alarm system

Question 60

A system of alarm initiating devices, transmitting and receiving equipment, and communication infrastructure (other than a public telephone network) used to communicate with the communications center to provide any combination of manual or auxiliary alarm service.

Answer 60

Public emergency alarm supporting system

Question 61

A device that responds when the temperature rises at a rate exceeding a predetermined value.

Answer 61

Rate-of-rise heat detector

Question 62

A secondary fire alarm notification unit usually located near the front door of a building, that provides event information and frequently has the same control functionality as the main fire alarm control unit.

Answer 62

Remote annunciator

Question 63

A fire alarm system that sounds an alarm in the building and transmits a signal to the fire department or an off-premises monitoring location.

Answer 63

Remote supervising station alarm system

Question 64

A sprinkler system designed to protect dwelling units.

Answer 64

Residential sprinkler system

Question 65

A sprinkler that is mounted on a wall and discharges water horizontally into a room.

Answer 65

Sidewall sprinkler head

Question 66

A manual fire alarm activation device in which the user takes a single step—such as moving a lever, toggle, or handle—to activate the alarm.

Answer 66

Single-action pull station

Question 67

A detector comprising an assembly that incorporates a sensor, control components, and an alarm notification appliance in one unit operated from a power source either located in the unit or obtained at the point of installation.

Answer 67

Single-station smoke alarm

Question 68

A mechanical system that can create positive or negative pressure to control, alter, and limit the spread of smoke and gases.

Answer 68

Smoke control system

Question 69

A device that detects visible and invisible products of combustion (smoke) and sends a signal to a fire alarm control unit.

Answer 69

Smoke detector

Question 70

A single smoke detector or heat detector device. These devices are often spaced throughout an area.

Answer 70

Spot-type detector

Question 71

The network of piping in a sprinkler system that delivers water to the sprinkler heads.

Answer 71

Sprinkler piping

Question 72

An arrangement of piping, valves, and hose connections installed in a structure to deliver water for fire hose.

Answer 72

Standpipe system

Question 73

An alarm system that communicates between the protected property and a constantly attended location that will receive, interpret, and take the appropriate action to handle the alarm condition.

Answer 73

Supervising station alarm system

Question 74

A signal that results from the detection of a supervisory condition that indicates the need for action.

Answer 74

Supervisory signal

Question 75

A standard fire alarm audible signal for alerting occupants of a building.

Answer 75

Temporal-3 pattern

Question 76

A signal initiated by a dispatch system or device indicative of a fault in a monitored circuit or component.

Answer 76

Trouble signal

Question 77

Any alarm that occurs that is not the result of a potentially hazardous condition.

Answer 77

Unwanted alarm

Question 78

A sprinkler head designed to be installed on top of the supply piping; it is usually marked SSU (“standard spray upright”).

Answer 78

Upright sprinkler head

Question 79

A sprinkler control valve that is mounted on the outside wall of a building. The position of the indicator tells whether the valve is open or shut.

Answer 79

Wall post indicator valve

Question 80

An attachment to the sprinkler system that detects a predetermined water flow and is connected to a fire alarm system to initiate an alarm condition.

Answer 80

Water flow alarm device

Question 81

A fixed fire protection system that discharges very fine water mist particles through specialized nozzles that extinguish by displacing oxygen, cooling, and blocking radiant heat.

Answer 81

Water mist system

Question 82

An audible alarm notification device that is powered by water moving through the sprinkler system.

Answer 82

Water-motor gong

Question 83

A system that discharges a proprietary liquid extinguishing agent. It is often installed over stoves and deep-fat fryers in commercial kitchens.

Answer 83

Wet-chemical extinguishing system

Question 84

The most common and least expensive type of automatic sprinkler system. As its name implies, the piping in a wet system is always filled with water. When a sprinkler head activates, water is immediately discharged onto the fire.

Answer 84

Wet pipe sprinkler system

Question 85

A fire alarm system design that divides a building or facility into zones so that the area where an alarm originated can be identified.

Answer 85

Zoned system

Question 86

The most current codes require new homes to have a smoke alarm A. on every floor. B. in every room. C. in every bedroom and on every floor level. D. in every bedroom, hallway, and floor level.

Answer 86

C. in every bedroom and on every floor level.

Question 87

Which type of detectors are triggered by the invisible products of combustion? A. Ionization smoke detectors B. Photoelectric smoke detectors C. Heat detectors D. Spot detectors

Answer 87

A. Ionization smoke detectors

Question 88

Many buildings have an additional fire alarm control display panel in the front of the building called a A. remote alarm station. B. remote control panel. C. remote annunciator. D. remote visual board.

Answer 88

C. remote annunciator.

Question 89

Fire alarm systems are activated by the A. remote annunciator. B. ESFR device. C. alarm initiation device. D. line detector.

Answer 89

C. alarm initiation device.

Question 90

Which type of fire alarm requires two steps before the alarm will activate? A. Single-action pull-station B. Double-action pull-station C. Protected pull-station D. Tamper alarm

Answer 90

B. Double-action pull-station

Question 91

A smoke detector is designed to sense the presence of A. smoke. B. heat. C. fire. D. toxic gases.

Answer 91

A. smoke.

Question 92

Which type of detectors use wire or tubing strung along the ceiling of large open areas to detect an increase in heat? A. Spot detectors B. Heat detectors C. Beam detectors D. Line detectors

Answer 92

D. Line detectors

Question 93

Which type of detectors detect the electromagnetic light waves produced by a flame? A. Beam detectors B. Line detectors C. Air sampling detectors D. Flame detectors

Answer 93

D. Flame detectors

Question 94

Which type or detectors are calibrated to detect the presence or a specific gas that is created by combustion? A. Gas detectors B. Combustion detectors C. Beam detectors D. Rate-of-calibration detectors

Answer 94

A. Gas detectors

Question 95

The activation of a single smoke detector plus the activation of a second smoke detector is characteristic of a A. double-pull alarm system. B. verification system. C. cross-zoned system. D. nuisance system.

Answer 95

C. cross-zoned system.

Question 96

The temporal-3 pattern is a(n) A. verification system. B. standardized audio pattern. C. alarm activation system. D. photoelectric detector system.

Answer 96

B. standardized audio pattern.

Question 97

Which type of sprinkler head has a glass bulb filled with glycerin to hold the cap in place? A. Fusible-link sprinkler head B. Chemical-pellet sprinkler head C. Deluge head D. Frangible-bulb sprinkler head

Answer 97

D. Frangible-bulb sprinkler head

Question 98

Which type or sprinkler head is triggered by the melting of a metal alloy at a specific temperature? A. Fusible-link sprinkler head B. Frangible-bulb sprinkler head C. ESFR sprinkler head D. Pendant sprinkler head

Answer 98

A. Fusible-link sprinkler head

Question 99

Which type or valve is mounted on the outside wall or a building? A. PIV B. OS&Y valve C. WPIV D. Support control valve

Answer 99

C. WPIV

Question 100

To allow the fire department's engine to pump water into the sprinkler system, each sprinkler system should also have a A. primary feeder. B. secondary feeder. C. pumper outlet. D. fire department connection.

Answer 100

D. fire department connection.

Question 101

Most modern sprinkler systems are connected to the building's fire alarm system to alert the occupants by a pressure switch or a A. tamper switch. B. flow switch. C. clapper switch. D. trigger switch.

Answer 101

B. flow switch.

Question 102

In most cases, the entire sprinkler system can be shut down by A. closing the main control valve. B. using the remote annunciator panel. C. deactivating the alarm. D. using a sprinkler wedge.

Answer 102

A. closing the main control valve.

Question 103

A network of pipes and outlets for fire hoses built into a structure to provide water for firefighting purposes is called a A. residential pipe system. B. grid system. C. standpipe system. D. closed flow system.

Answer 103

C. standpipe system.

Question 104

The network of pipes and outlets for fire hoses built into a structure and designed for use by the building occupants is designated as belonging to A. Class I. B. Class II. C. Class II l. D. Class IV.

Answer 104

B. Class II.

Question 105

Which of the following is the name for a special extinguishing system that operates by discharging a gaseous agent into the atmosphere at a concentration that will extinguish a fire? A. Wet chemical extinguishing system B. Clean agent extinguishing system C. Dry chemical extinguishing system D. Carbon dioxide extinguishing system

Answer 105

B. Clean agent extinguishing system

Question 106

______ detectors are triggered by the visible products of combustion.

Answer 106

Photoelectric

Question 107

The fire alarm control panel serves as the _______ of the fire alarm system.

Answer 107

brain

Question 108

The fire alarm control panel should monitor the entire alarm system to detect any _______.

Answer 108

faults

Question 109

A(n) _______ detector is a type of photoelectric smoke detector used to protect large open areas.

Answer 109

beam

Question 110

____-__-____ detectors will be activated if the temperature of the surrounding air rises more than a set amount in a given time period.

Answer 110

Rate-of-rise

Question 111

A(n) _______ alarm occurs when an alarm system is activated by a condition that is not really an emergency.

Answer 111

unwanted

Question 112

A(n) _____ ___ system sends a signal directly to the fire department or to a monitoring location via telephone or radio signal.

Answer 112

remote station

Question 113

_______ sprinkler heads are designed for horizontal mounting and projecting out from a wall.

Answer 113

Sidewall

Question 114

The network of pipes that delivers water through the sprinkler system is the sprinkler _______.

Answer 114

piping

Question 115

The Class _______ standpipe is designed for use by fire department personnel only.

Answer 115

I

Question 116

True/False Smoke alarms can be either hard-wired to a 110-volt electrical system or battery operated.

Answer 116

True

Question 117

True/False A photoelectric detector has a small amount of radioactive material inside a chamber.

Answer 117

False

Question 118

True/False An activated alarm sounds throughout a building.

Answer 118

False

Question 119

True/False Heat detectors provide reliable life-safety protection.

Answer 119

False

Question 120

True/False Bimetallic strips are made to respond to a rapid increase in temperature.

Answer 120

True

Question 121

True/False Nuisance alarms are caused by individuals who deliberately activate fire alarms when there is no fire.

Answer 121

False

Question 122

True/False Fire alarm systems can control doors and elevators.

Answer 122

True

Question 123

True/False A central station is operated by the fire department.

Answer 123

False

Question 124

True/False An activated sprinkler head in an automatic sprinkler system triggers the water-motor gong.

Answer 124

True

Question 125

True/False All sprinkler systems should be equipped with a method for sounding an alarm whenever there is water flowing in the pipes.

Answer 125

True