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Flashcards in 11 Fire Detection And Alarm Systems Deck (101):
1

This is essentially the brain of the alarm system

Fire alarm control panel FACP

2

Primary electrical power supply for alarm system

Buildings main power supply

3

A secondary power supply must be able to make the fire detection system fully operational within what time of the main power failure

30 seconds

4

Storage battery for alarm system cannot be

Dry cell battery

5

Secondary power supply must be one of the following

Storage battery and charger
Generator and 4 hr capacity battery
Multiple generators, one with auto start

6

Trouble signal must have a different power source than the main power true false

True

7

System component that generates and audible visual or motion signal to alert humans to activation of alarm initiating device

Signaling device

8

Most common signaling decides

Audible

9

Sometimes called detectors, constantly monitor the condition of the atmosphere

Automatic alarm initiating devices

10

Four types of automatic detectors or initiating devices

Heat, smoke, fire gas, and flame

11

One of slowest to respond, but relatively inexpensive, and least prone to false activations

Fixed temp heat detectors

12

Heat detectors operate based one one of these principles

Heat causes expansion
It causes melting
It has detectable thermo electric properties

13

Type of heat detector using two different metals with different expansion rates

Bi metallic hear detector

14

True false. Most bi metallic heat detectors are NOT self resetting

False they are

15

Material that is not a good conductor or insulator and may be used as both

Semiconductor

16

Heat detector that can be used to detect conditions over a wide area

Continuous line heat detector

17

Conductive metal inner core cable sheathed in stainless steel tubing. self restoring. Heat detector

Tubing type continuous line

18

Two wires that are each insulated and bundled within an outer covering. Insulation melts and two wires touch. To restore, fused portion must be removed and replaced.

Wire type continuous line heat detector.

19

Two most significant factors in preventing large fire losses

Early detection and proper signaling

20

Detector designed to operate on the principle that fire is rapidly increase the temperature in a given area

Rate of rise heat detector

21

Compared to fix temperature heat detectors rate of rise respond how

At substantially lower temperatures

22

Typically rate of rise heat detectors are designed to send a signal when the rise in temperature exceeds what temperature per minute

12-15°F for minute

23

True false all rate of rise heat detectors do not automatically reset

False they do automatically reset

24

Heat detector that can monitor large areas. System of metal pneumatic tubing arranged over a wide area of coverage. Tubing acts as a pressurized air chamber as air expands it moves a flexible diaphragm

Pneumatic rate of rise line heat detector

25

Tubing in pneumatic rate of rise line heat detectors is limited to about 1000 feet in length. The tubing should be arranged in rows that are no more than how many feet apart and how many feet from walls

30 ft apart and 15 from walls

26

Heat detector that works on same principle as pneumatic rate of rise line. This detector is self-contained it one unit monitors a specific location

Pneumatic rate of rise spot heat detector

27

This heat detector is designed to be used in areas that are subject to regular temperature changes. Containing outer bimetallic sleeve with a moderate expansion rate. Two bowed struts are inside with a slower expansion rate than the sleeve

Rate compensation heat detector

28

Semiconductor made of substances that have a resistance that varies rapidly and predictably with temperature

Thermistor

29

Detectors with one or more thermistors. They change in electrical resistance when exposed to heat. Can be calibrated to function as a rate of rise approximately 15° per minute or fixed temperature

Electronic spot type heat detector

30

What percentage of fire deaths are attributed to smoke inhalation and not to Burns

65%

31

Preferred type of detector in many types of occupancies

Smoke detectors

32

Sometimes referred to as a physical products of combustion smoke detector

Photoelectric smoke detector

33

This smoke detectors works satisfactorily on all types of fires and usually responds work quickly to smoldering fires

Photo electric smoke detector

34

Smoke detector best suited for living rooms bedrooms and kitchen's

Photoelectric smoke detector

35

Type of photoelectric detector using a beam of light focused across an area being monitored onto a receiving device

Projected beam application

36

Type of photoelectric detector that is particularly useful in buildings were large area of coverage is desired

Projected beam application

37

Type of smoke detector that contains a sensing chamber consisting of two electrically charged plates one positive and one negative, and radioactive source

Ionization smoke detector

38

Physical process of converting an Adam or molecule into an ion by adding or removing charged particles such as electrons

Ionization

39

What can cause a malfunction of an ionization detector

Changes and humidity and atmospheric pressure

40

Type of smoke detector that work satisfactorily on all types of fires although generally respond more quickly to flaming fires

Ionization smoke detector

41

Smoke detector best suited for rooms that contain highly combustible materials such as cooking grease newspapers flammable liquid paint cleaning solution

Ionization smoke detector

42

Type of ionization smoke detector that is designed to continuously monitor small amount of air from the protected area

Air sampling smoke detector

43

Type of detector that is a system of pipes in the ceiling of the protected area. A fan in the detector control unit draws air from the building and is then sampled using for electric sensor

Air sampling smoke detector

44

Sometimes called a light detector

Flame detector

45

Three types of flame detectors

UV.
IR.
Both

46

Type of detector that's fast to respond to fires but also easily tricked I know on fire conditions like welding sunlight

Flame detector

47

Infrared flame requires what action of the flame before it sends an alarm

Flickering action of the flame

48

Some gasses released by fire may include

Water vapor h20
Carbon dioxide co2
Carbon monoxide
Hydrogen chloride hcl
Hydrogen cyanide hcn
Hydrogen fluoride hf
Hydrogen sulfide h2s

49

Only what gases are released from all carbonaceous material that burns

H20
Co2
And co

50

It is only practical for a fire gas detector to monitor levels of what gases

CO2. CO

51

A fire gas detector operates faster than a heat detector but not as fast as

A smoke detector

52

Devices used to supervise automatic sprinkler systems

Temper switches

53

Device for occupants to manually initiate the alarm.

Manual alarm initiating devices
Aka pull stations or pull boxes

54

Manual alarm systems depends on occupants for activation and therefore requires

The occupancy be occupied.

55

Pull stations are to be mounted on columns or walls so that the operable portion is no less than and no more than how high from floor

No less than 3.5' and no more than 4.5' from the floor

56

In all cases, travel distances to the pull station should not exceed how many feet

200'

57

Pull stations are required how far from every exit

Within 5' of exits

58

Most building codes do not require manual pull stations when what is present

Automatic sprinklers wrinkles

59

Pull station that operates after a single motion is made from the user

Single action

60

Pull station that requires the operator to perform two steps in order to activate the alarm. Lifting a door the activating switch

Double action

61

Type of system installed in an occupancy depends on the following

Level of life hazard
Structural features
Hazard from building contents
Availability of fire suppression resources.
State local code requirement.
Federal regulation.

62

Alarm system that is used to notify occupants of an emergency and direct them in the proper course of action

Emergency voice/alarm communications system

63

System that is used to connect fire alarm boxes or protected occupancy directly to the fire department

Parallel telephone system

64

Alarm system designed to transmit both a visible and audible alarm only in the immediate premises with no off-site reported

Protected premises/local

65

Three basic types of local alarm systems

Non-coated local alarm .
Zoned/annunciated alarm.
Addressable alarm system

66

Simplest type of local alarm system. When detector send signal to the control panel all of the alarm signaling devices operate simultaneously

Non-coded local alarm

67

An annunciator panel fire alarm control panel or print out should indicate the building floor fire zone or other area that coincides with the location of an operating initiating device. Easier for responders to identify location of activation

Zoned/annunciated alarm

68

Of the three types of protected promise/local alarm systems, this type is the most effective and becoming more prevalent

Addressable alarm system

69

Type of local alarm system where each initiating device is connected to a specific visible indicator on the alarm control or annunciator panel.

Addressable alarm system

70

Fire alarm system that is connected to a municipal fire alarm system transmitted over same manual fire alarm boxes on the street

Auxiliary fire alarm

71

Type of auxiliary fire alarm that has its own source of power does not depend on the supply source that powers the entire municipal fire alarm system

Local energy system

72

Type of auxiliary fire alarm that is electrically connected to an integral part of the municipal fire alarm system and depends on the system source of electric power

Shunt system

73

NFPA 72 allows what detection devices to be used on a shunt system

Only manual pull stations and waterflow detection.

74

Alarm system used to protect large commercial and industrial buildings high-rise structures, and groups of commonly owned buildings, such as a college campus or industrial complex in a single location. Each building has its own system all are wired to common receiving point in a separate structure remote from hazard

Proprietary alarm system

75

The primary difference between a central station system and a proprietary system is

The receiving point for alarms in a central station system is located outside the protected premises and monitored by contracted service

76

A remote receiving system is common in localities that are not served by

Central station systems

77

Remote receiving system is like an auxiliary system except

They're attached through nondedicated fire department alarm lines. may use alternative monitor station like PD

78

Supplementary system placed in a facility in addition to other alarm signaling system. Purpose is to provide reliable communication for residents and firefighters

Emergency voice/alarm communication

79

Two basic types of emergency voice/alarm communication system

One Way system. Two way system

80

Emergency voice communication system that warns building occupants the action is needed and tells them what actions to take

One way system

81

Emergency voice alarm communication system that allows people at other locations in the building to communicate with the person at the main control station using either intercom or special telephones

Two-way system

82

Dedicated telephone line between each individual alarm box or protect the property and the fire department communication center

Parallel telephone system

83

Fire alarm test conducted when systems are installed are commonly called

Acceptance tests

84

Periodic testing the fire alarms is often referred to as

Service testing

85

What an be used to check restorable heat detectors

Heat gun or hair dryer

86

Non restorable pneumatic heat detectors should be tested how

Mechanically

87

The actual performance of the alarm system test is the responsibility of

The owner occupant. Or fire alarm company

88

Dry cell batteries, or lead acid and primary batteries, should be inspected how often

Monthly

89

Nicad and sealed lead acid batteries should be inspected how often

Semi annually

90

Reliability of the entire alarm system is entirely dependent on the reliability of what

The detection devices

91

When should automatic initiators be inspected.

After install
After a fire
recurring schedules

92

A permanent record of all detector and system tests must be kept by the AHJ for how long.

At least 5 years

93

Following minimum information should be included in the alarm test file

Date
Detector type
Location
Type of test
Result

94

For a non restorable fixed temp Heat detector, it cannot be tested periodically, and therefore must be tested when

15 years after install with 2% of them removed for lab testing

95

Restorable heat detectors should have one detector on each circuit tested how often

Semiannual

96

Fusible link detector with replaceable links should be checked by removing link and seeing if contacts close how often

Semi annually

97

Replaceable fusible links are recommended for replacement how often

Every 5 years

98

Pneumatic heat detectors should be tested with a heating device or pressure pump how often

Semi annually

99

Smoke detectors should be tested semi annually and sensitivity testing be performed when

After first year of service every two years after that

100

Flame and gas detection devices require testing from trained individuals. Inspectors are only responsible for

Witnessing the test.

101

Auxiliary devices a fire alarm panel may control are

Hvac fictions
Evac alarms
Fire dampers