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Fire Alarm > Fire Alarm > Flashcards

Fire Alarm Flashcards

1
Q

What is required for all fire alarm systems (new and existing)?

A

Documentation

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2
Q

What should be delivered upon completion of a fire alarm system?

A

Owners manual, record drawings, record of completion, site software

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3
Q

Where should all system records be stored?

A

Documentation cabinet at control unit

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4
Q

What must equipment powered by IDC or SLC be listed with?

A

Control unit

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5
Q

What are the requirements for a circuit breaker in a fire alarm system?

A

Requires lock, cabinet lock or locked room door, and be marked FIRE ALARM in red

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6
Q

How many hours of standby power are required for fire alarm systems and supervising stations?

A

24 hours

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7
Q

What is the minimum alarm power for commercial fire alarms?

A

5 minutes

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8
Q

What is the minimum alarm power for voice evacuation and MNS?

A

15 minutes

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9
Q

What is the minimum alarm power for household fire alarms?

A

4 minutes

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10
Q

How much additional safety margin is required for battery calculations?

A

0.25

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11
Q

How quickly should secondary power switch?

A

Within 10 seconds

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12
Q

When should alarm notification, emergency functions, and annunciation occur after activation?

A

Within 10 seconds

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13
Q

When should supervisory signals indicate?

A

Within 90 seconds

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14
Q

When should trouble signals indicate?

A

Within 200 seconds

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15
Q

What are the operational requirements for fire alarm equipment?

A

85% - 110% voltage, 32 - 120 F, and 85% humidity

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16
Q

Where must smoke detectors be provided?

A

At control units, NAC extenders, and transmitting equipment

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17
Q

How should each floor be treated in a fire alarm system?

A

As a separate zone

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18
Q

How should a system serving multiple buildings be zoned?

A

Each building shall be zoned separately

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19
Q

What is Class A circuitry?

A

Redundant with a return path, operates with single ground or open

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20
Q

What is Class B circuitry?

A

Single path, operates up to single open, EOLR on IDC and NAC

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21
Q

What is Class C circuitry?

A

Multiple paths, no supervision of paths, operation verified by receipt of signal

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22
Q

What is Class D circuitry?

A

Fail-safe operation

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23
Q

What is Class E circuitry?

A

No supervision

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24
Q

What is Class X circuitry?

A

Class A SLC with short, fault isolator per device

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25
Q

What is Class N circuitry?

A

Network (Ethernet), dual cable/fiber to each Ethernet device or segment

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26
Q

How long should records of tests and operations be kept?

A

Until next test and one year thereafter

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27
Q

Who is responsible for IT&M of fire alarm systems?

A

The owner, who may delegate in writing

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28
Q

What type of testing is required for all new fire alarm systems?

A

100% acceptance testing

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29
Q

What annual tests are required for smoke detectors?

A

Smoke entry testing and sensitivity testing

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30
Q

How often should smoke detector sensitivity be tested?

A

Within 1 year, then every other year

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31
Q

If sensitivity remains within range, how long can testing be extended?

A

Up to 5 years

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32
Q

How often should smoke alarms in dwellings be tested and replaced?

A

Tested monthly, replaced every 10 years

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33
Q

How should initiating devices be protected?

A

From damage, with a guard listed with the device

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34
Q

What is required for detectors in concealed locations more than 10 AFF?

A

Remote indicators (except addressable)

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35
Q

How should partitions extending within 15% of ceiling height be treated?

A

As separate rooms

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36
Q

Where should detectors be located along the ceiling?

A

Within 0.7 of listed spacing

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37
Q

How can joist, beam, and slope affect detector placement?

A

They can affect location and spacing

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38
Q

Where should heat detectors not be located?

A

Within 4 of sidewall, or between 4-12 from ceiling if wall mount

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39
Q

How should heat detectors be positioned relative to ceiling temperature?

A

At least 20 F above maximum expected ceiling temperature

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40
Q

How is heat detector spacing determined?

A

It has a listed spacing that varies

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41
Q

How does ceiling height affect heat detector spacing?

A

Heights above 10 reduce spacing

42
Q

Where can smoke detectors be mounted?

A

Ceiling or sidewall within 12 of ceiling

43
Q

What is the spacing requirement for smoke detectors?

A

30

44
Q

How can beam depths affect smoke detector spacing?

A

Greater than 10% of ceiling height can affect spacing

45
Q

What is the 0.7 Rule for corridor applications?

A

Reduces the number of detectors required

46
Q

Are duct smoke detectors a replacement for open area detection?

A

No, they are not a replacement

47
Q

What does NFPA 90A require for duct smoke detectors?

A

On supply when >2000 CFM, supply & return when >15,000 CFM, and serving 2+ floors

48
Q

How should detectors used for door release be listed?

A

Listed for door release

49
Q

How many detectors are required for door release on a header ? 24?

A

1 detector

50
Q

How many detectors are required for door release on a header > 24 one side?

A

1 detector on the higher side

51
Q

How many detectors are required for door release on a header > 24 both sides?

A

2 detectors

52
Q

How many wall mount door release detectors are required?

A

2 (one on each side)

53
Q

When should waterflow be initiated?

A

Within 90 seconds of water flowing (retard time)

54
Q

How should control valve supervisory signals be tested?

A

Within 2 revolutions or 1/5 travel distance

55
Q

How should pressure supervisory signals be tested?

A

With change of +/- 10 psi

56
Q

What color should a manual fire alarm box (pull station) be?

A

Red

57
Q

Where should pull stations be mounted?

A

3.5 - 4 (42 - 48), within 5 feet of door at each egress path exit on each floor

58
Q

What is the maximum travel distance to a pull station along a path of egress?

A

200

59
Q

What is required for group openings over 40?

A

Pull stations on each side

60
Q

How should notification appliances be protected?

A

From physical damage, with guards or covers listed with appliance

61
Q

What is required for ambient sound levels above 105dB?

A

Strobe

62
Q

What is the maximum allowable sound level at minimum hearing distance?

A

110dB

63
Q

Are systems that reduce ambient sound levels permitted?

A

Yes

64
Q

What is the audible level requirement for public mode and private mode?

A

Public mode 15dB above ambient, private mode 10dB above ambient

65
Q

How should audibles be synchronized and what pattern is used?

A

Temporal 3 (ANSI S3.41) and synchronized in notification zone

66
Q

What is the minimum number of notifications required per floor?

A

1

67
Q

Where should audible appliances be mounted?

A

Tops at least 90 AFF, and at least 6 below ceiling

68
Q

What tone is required for sleeping areas?

A

520HZ

69
Q

How should strobes be mounted?

A

Entire lens at least 80 AFF, and not more than 96 AFF

70
Q

What is the maximum height for strobes mounted on ceilings above 30?

A

Not higher than 30

71
Q

How should strobes be selected for non-square rooms?

A

Use a square that encompasses the entire room

72
Q

What is the strobe spacing requirement for corridors 20 or less?

A

Use room spacing, corridors less than 20 shall be at least 15cd

73
Q

What is the Inverse Square Law?

A

Double distance lose 6dB, double power gain 3dB

74
Q

Where should emergency control function interfaces be located?

A

Within 3 of control circuit or appliance

75
Q

What detectors are allowed to initiate elevator recall?

A

Only automatic detectors in elevator lobbies, hoist ways, machine rooms

76
Q

Where should lobby recall detectors be located?

A

Within 21 of centerline of elevator doors

77
Q

Where should smoke detectors not be installed?

A

In hoist ways unless listed for the environment

78
Q

How should heat detectors for elevator shutdown be positioned?

A

Within 2 of sprinkler and lower temperature

79
Q

Are waterflows permitted to have retard for elevator shutdown?

A

No

80
Q

What type of signal may duct detectors initiate?

A

Alarm or supervisory signal (IBC supervisory only)

81
Q

How should electrically locked exit doors respond to fire alarm activation?

A

Unlock and remain unlocked until reset

82
Q

How many fire alarm systems are required for high-rise buildings?

A

At least 2

83
Q

Where should fire alarm systems be located in high-rise buildings?

A

On every floor and at the main control panel

84
Q

How should fire alarm systems be tested and maintained?

A

According to manufacturers instructions and NFPA standards

85
Q

What is the maximum number of waterflows per zone?

A

5

86
Q

What is the maximum number of supervisory devices per zone?

A

20

87
Q

Can microphones and speakers be used for non-emergency communications?

A

Yes

88
Q

What is required for mass notification systems?

A

Emergency response plan

89
Q

What must emergency messages be preceded by?

A

2 cycles of emergency evac signal (Temporal 3)

90
Q

How should strobes be marked for mass notification and fire alarm?

A

No marking or marked ALERT for mass notification, clear strobes for fire alarm

91
Q

What type of fire alarm system is monitored but has no special requirements?

A

Remote

92
Q

What does a central fire alarm system require?

A

Listed installation, installation company, and monitoring station

93
Q

What is a proprietary fire alarm system?

A

Monitored by the same organization that owns the building

94
Q

What is the maximum time for end-to-end communications in a fire alarm system?

A

90 seconds

95
Q

How often should a single communications path be supervised?

A

Every 60 minutes

96
Q

How often should multiple communication paths be supervised?

A

Every 6 hours

97
Q

What must a DACT be connected to?

A

One phone line and one alternate method (radio or performance-based)

98
Q

How soon should a DACT indicate trouble with a phone line?

A

Within 4 minutes

99
Q

What equipment for transmission must have standby power?

A

Premises equipment (e.g., router)

100
Q

Where must smoke alarms be installed in household systems?

A

In sleeping areas, outside sleeping areas, and at least 1 per floor

101
Q

How should smoke alarms in household systems be configured?

A

Interconnected (multiple-station)

Fire Alarm (1 decks)

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