Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Fire Alarm > Fire Alarm > Flashcards

Fire Alarm Flashcards

1
Q

To get a fire you need what 4 things

A

Oxygen
Fuel
Heat
Chain reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

An electrical fire needs ____________ fuel, which could be ___________ on _____________.

A

Organic
Plastic on wires

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Wire insulation is ____________ based

A

Carbon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When a wires insulation turns yellow it is turning into a _____________

A

Semi conductor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

In electrical fires at _________⁰C fire begins, combustion occurs in _____________ above the fuel, not the fuel itself.

A

350
Vapours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Pool fires would be considered as?

A

Liquids that burn

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Explain flashover in regards to fires

A

When the heat at the top of the room 1300⁰C meats the heat at the bottom of the room 200⁰C and instantly the whole room goes up

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Explain the function of an afci

A

Used in sleeping areas of residential occupancies to prevent the wires from starting fires

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the 3 common types of fire classifications

A

Ordinary combustion
Flammable liquids
Energized electrical equipment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the two types of specialty fire classifications

A

Combustable metals such as sodium and magnesium
Cooking oils

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the letter classifications for each type of fire classifications and which do they represent

A

Class A ordinary fire
Class B flammable liquids
Class C electrical equipment
Class D combustable metals
Class K is cooking oils

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the acronym for a fire extinguisher and what does each letter represent

A

P pull
A aim
S squeeze
S sweep

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Dry chemical agent prevents the reaction between __________ and _________. What fires is it good for.

A

Heat and fuel

Good for ABC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What extinguishing agent takes oxygen from the equation and prevents flashback and is good for class D

A

Foam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What extinguishing agent is used in most city hydrants at high pressure

A

Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What extinguishing agent removes heat and dissipates oxygen and leaves no residue (advantage)

A

Co²

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

______________ are designed to detect same characteristics of each stage

A

Fire detectors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the four distinct fire stages

A

Incipient
Smouldering
Flame
Heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What fire stages has no visible smoke, and very little heat. A significant amount of invisible combustion particles are created

A

Incipient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What fire stages is the slowest

A

Incipient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Best detector for the incipient stage

A

Smoke detector or ionization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What fire stages has developed smoke but no flame
Not much heat but more than before

A

Smouldering stage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the best detector for the smouldering stage

A

Photoelectric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

A smoulder stage could last for _________

A

Hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What fire stages has visible flames and often less or no smoke

A

Flame stage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is the best detector for the flame stage

A

Flame detector or fire eyeb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What fire stages has large amounts of heat and flames are present
Smoke and toxic gasses are also prevalent.

A

Heat stage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

The transition for stages _____ to _____ is very fast

A

3 to 4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Best detector for the heat stage

A

Heat detector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What is the deadliest fire stage and why

A

Stage 2 smoulder. It consumes oxygen and replaced it with toxic gasses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Normal air is about ____ % oxygen

A

21

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Oxygen level _______ exposure time is indefinite
Symptoms: loss of coordination, thinking becomes difficult, shortness of breath

A

17-21%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Oxygen level ______
Exposure time 30 minutes
Symptoms: rapid pulse and dizziness

A

14-17%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Oxygen level _______
Exposure time 5 minutes
Symptoms:unconscious

A

9%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Oxygen level ____
Exposure time 1-2 minutes
Symptoms: death

A

6%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

What is the main purpose of a fire alarm system

A

To save lives

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

What is the second purpose of a fire alarm system

A

Property protection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

In regards to main players who determines the type of fire alarm system to be used in any building

A

Bc building code

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Fire alarm type is based on what

A

Size of building and type of occupancy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

In regards to main players who is responsible to publish the standards for device installation and verification testing

A

ULC
Underwriters laboratories of Canada

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

You must have a _______ device on all FA devices

A

ULC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Who is known as the authority having jurisdiction

A

Bc fire Marshall act

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

In regards to main players what gives them the power to inspect FA installations for compliance

A

Bc fire Marshall act

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

In regards to main players what is used by fire marshals and designers for the requirements concerning occupancy and alterations of fire protection systems

A

Bc fire code

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

What are 3 main parts of a fire alarm system

A

Initiated device circuits
Control panel
Signalling device circuits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

What are other parts of a fire alarm system other than the 3 main parts

A

Annunciator panel
Ancillary devices

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Should have a __________________ at every main entrance

A

Annunciator panel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Dampers
Fans
Door holders
Elevator capture are what kind of devices

A

Ancillary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

A com system with one way communication is called a

A

Simplex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

A com system that can communicate either way but can only have one side at a time

A

Half duplex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

A com system that can communicate both directions all the time is a

A

Full duplex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Fa panel accepts _________________ from idcs

A

Low current signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

Fa control panels operate ______________ and ___________& signals.

A

Audible and visual

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

Fa pabels provide _____________________ monitoring field wiring for faults.

A

Electrical supervision

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

A fa panel performs other _______________ and _________________ functions.

A

Ancillary and auxillary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

A FA panel must have a ___________________

A

Back up power supply

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

What are the characteristics of a single stage FA system

A

Operate all audible and signalling devices

Indicate at the remote annunciator

Operate the city tie module

Operate all ancillary devices

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

What is the ppm of a bell

A

120ppm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

What is the general stroberate

A

1-3 pulses/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

What are the characteristics of a two stage systems first stage

A

Operate all audible and signalling devices

Indicate at the remote annunciator

Operate the city tie module (ctm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

What is the alert rate ppm

A

20

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q

Advantage of two stage systems

A

1st stage allows trained personnel to investigate the alarm

If after 5 minutes or a second device alarm automatic stage 2 or evacuation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

What are the characteristics of a type 1 FA system

A

Non indicating
Non zoned
General alarm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

Characteristics of a type 2 FA system

A

Indicating
Zoned
General alarm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q

Characteristics of a type 3 FA system

A

Indicating
Zoned
Coded
General alarm

66
Q

Characteristics of a type 4 FA system

A

Indicating
Zoned
Alert/alarm

67
Q

Characteristics of a type 5 FA system

A

Indicating
Zoned
Coded
Alert/alarm

68
Q

_____________ is a location that is watched by an initiating device in a circuit or an area

A

A zone

69
Q

A zone must be _____________ and less than ____ stories

A

Under 2000m²
3

70
Q

Hospitals must have _______________ of individual zones

A

100’s

71
Q

Nursing homes have ___ zones per floor or wing

A

2

72
Q

Buildings with zones must have ____________ and _______________

A

Annunciators
Secondary EM power

73
Q

What does idc stand for

A

Initiated device circuits

74
Q

What does sdc stand for

A

Signaling device circuits

75
Q

All _________ including pull stations are shown as NO contact which causes a short circuit and triggers the alarm

A

IDCs

76
Q

Pull stations must be what colour

A

Bright red

77
Q

Pull stations can be _______________ or ______________

A

Flush mount
Surface

78
Q

Pull stations must be near every ____________________.

A

Entrance and exit

79
Q

Pull stations must be found in ____________________ rooms (+60 people)

A

Large assembly rooms

80
Q

Pull stations must be found ____________ in long hallways

A

Midway

81
Q

What is the distance that makes a long hallways

A

200’

82
Q

Pull stations height must be

A

1.05-1.15m Aff

83
Q

What is the oldest form of protection that is considered a property protector

A

Heat detectors

84
Q

_________ detectors are responsive to changes in ambient temperature

A

Heat

85
Q

_______ detectors are the least expensive and slowest in the detecting a fire

A

Heat

86
Q

What are the types of heat detectors

A

Fixed temperature restorable
Fixed temperature non restorable
Rate of rise

87
Q

A bi metal strip is used to close a circuit when increase in heat for which detector

A

Fixed temperature restorable

88
Q

Heat will cause a solder pot to melt releasing a plunger in contacts for a one time use is what kind of detector

A

Fixed temperature non restorable

89
Q

Common temps for a non restorable fixed heat detector

A

58⁰c 88⁰c

90
Q

In a rate of rise, temperature near the devices needs to rise by _____ in ______ minutes(s)

A

9⁰c
1 minute

91
Q

What kind of detector usually has a fixed temperature element for backup

A

Rate of rise

92
Q

What is good electrical practice in regards to location of heat detectors

A

To place heat detectors instead of smoke in environments that would be described as hostile

93
Q

Flexible detector can be placed around items requiring fire protection is what kind of detector

A

Line type

94
Q

Two twisted steel wires carry a small supervisor current in a loop style is make kind of detector

A

Line type

95
Q

When the fire breaks the polymer melts and conducts a short circuit is what kind of detector

A

Line type

96
Q

In line type detection _________ is initiated however most cases __________ also occurs simultaneously

A

Alarm

Suppression

97
Q

______________ detection is used mostly in industrial applications

A

Line type

98
Q

What like type is more rigid than other types

A

Thermister core

99
Q

What detector has a negative temperature coefficient

A

Thermister core line type

100
Q

____________ core when heated allows more current to flow

A

Thermister

101
Q

When smoke detectors are activated the smoke spread can be controlled by the panel in what four ways

A

Closing dampers and ducts
Activating exhaust fans
Energized positive pressure fans in stairwells
Release magnetic door holders

102
Q

What are the two types of smoke detectors

A

Ionization
Photo electric

103
Q

Ionization smoke detectors contains a small amount of ________________ material. Which ionizes an ___________ between two plates

A

Radioactive material

Airgap

104
Q

_________________ detectors will allow a small amount of current to flow which is good

A

Ionization

105
Q

When fire molecules enter they neutralize the ions and less current will flow between the plates is what kind of detector

A

Ionization

106
Q

What is the fastest detector

A

Ionization

107
Q

Light scattering and light obstruction is what kind of detector

A

Photo electric

108
Q

Smoke detectors require a _________ to annunciate an alarm

A

FAcu

109
Q

Smoke _______ will have its own audible ability

A

Alarms

110
Q

What kind of detector would you use if you had high rooms, atriums etc

A

Projected beam

111
Q

________________ detectors are good for places where maintenance is hard, corrosive or highly turbulent

A

Projected beam

112
Q

Beam detectors typically have two parts the ____________ and ____________

A

Transmitter
Receiver

113
Q

______________ detector is not fooled by other sources of IR

A

Beam

114
Q

A ____________ smoke detector is mounted to watch air inside of air ducts transporting air between floors

A

Duct

115
Q

The purpose of a duct smoke detector is

A

To shutdown the HVAC when smoke is present

116
Q

Duct smoke detectors must be used in _______________ with other forms of ________________

A

Conjunction
Protection

117
Q

Why can’t duct smoke detectors be relied on by themselves

A

HVAC systems can be shut off

Often fresh air is mixed with recirculated air

Clogged air filters are common

118
Q

What detector is usually able to see a naked flame

A

Uv/ir or fire eye

119
Q

What is the hz of a flames signature flicker

A

5-30hz

120
Q

What detector is the only one that gives 3 stage protection

A

Uv/Ir (fire eye)

121
Q

A ___________ detector is a line of sight device

A

Uv/ir (fire eye)

122
Q

____________ detectors once activated always trigger suppreson systems as they are property detectors

A

Uv/ir (fire eye)

123
Q

Fuels like naptha, butane and propane burn with a blue colour and are picked up by the ______ detector

A

UV

124
Q

Gasoline, jet fuel and diesel burn with a red hue and this is picked up by the _____ detector

A

IR

125
Q

SDCs are ___________ sensitive

A

Polarity

126
Q

What does dip in dip switch stand for

A

Dual inline package

127
Q

Horns have a range of ______

A

200’

128
Q

________ are used in commercial and industrial locations where high ambient noise is likely

A

Horns

129
Q

Horns can play ___________ or ____________ signals

A

Coded
Sustained

130
Q

Horns approximately about _______V
And __________mA

A

120v
180mA

131
Q

__________4 are not a replacement for Bells

A

Strobes

132
Q

________________ act requires these flashing lights for the hearing impaired

A

96 disability act

133
Q

Strobes must be installed so they are _______________ to all people in the room

A

Visible

134
Q

Every ___ dB is sound doubling

A

3

135
Q

What are the four main types of sprinkler systems

A

Wet pipe
Dry pipe
Pre action
Deluge

136
Q

Which sprinkler system has the fastest response time

A

Wet type

137
Q

When a flow switch is engaged what would that signal to the FACU

A

Alarm

138
Q

When a tamper switch is opened what would it signal to the FACU

A

Trouble

139
Q

What is used to boost the water pressure on the sprinkler side of the check valve

A

Jockey pump

140
Q

What can be installed to reduce false alarms due to water hammering

A

Jockey pump

141
Q

__________ pumps typically have their own controls and are supervised by the FACU

A

Jockey

142
Q

What type of sprinkler is used in areas where freezing is likely to occur

A

Dry type

143
Q

What system of sprinklers have a interlocked system

A

Pre action

144
Q

What kind of sprinkler system is used to reduce damage from accidental discharge

A

Pre action

145
Q

Which sprinkler system is designed for high hazard areas

A

Deluge

146
Q

Which sprinkler system has open heads which when activated floods the whole area

A

Deluge

147
Q

Which sprinkler system has unpressurized pipe. Sprinkler heads are open.

A

Deluge

148
Q

Minimum height for a fire bell

A

1.8m

149
Q

Maximum height permitted for a annunciator panel

A

2.4m

150
Q

Maximum height for a control panel

A

2.4m

151
Q

Maximum height for an EOL

A

1.8m

152
Q

Institutional buildings like nursing homes require a minimum of ______ zones per floor

A

2

153
Q

Where are end of line resistors usually located

A

In the field after the last device

154
Q

In regards to trouble shooting IDCs what could be the problems of you read a short

A

Pull station on
Faulty smoke or heat
Incorrect wiring

155
Q

In regards to troubleshooting IDCs what could be the causes of your meter reads open

A

Missing EOL
Missing shorting strip on I type detectors
Loose or broken wiring behind device

156
Q

In regards to troubleshooting SDCs what if you read infinite both ways

A

Open before the first bell

157
Q

In regards to troubleshooting SDCs of you read low ohms both ways means

A

At least one bell is connected wrong

158
Q

In regards to troubleshooting SDCs if you read less than 500 ohms both ways means

A

One or more bells is backwards

159
Q

In regards to SDCs is your meter a dead short or 0 ohms it is likely a

A

Pinched or stripped wire do not energized

160
Q

In regards to addressing explain what polling is

A

The FACU asks
Who are you
What is your status

Fire Alarm (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions