Fire Alarm Test 1 Flashcards

(64 cards)

1
Q

Three types of fire alarm notification

A
  1. Trouble
  2. Alarm
  3. Supervisory
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2
Q

Are detectors rest able t or f?

A

True

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3
Q

What action cause a fire panel to display an alarm

A

Actual fire

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4
Q

Can a residential smk be on a separate circuit

A

No

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5
Q

What does NAC mean

A

Notification appliance cct

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6
Q

What does IDC mean

A

Initiation device circuit

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7
Q

Is CEC not required for fire alarm T or F?

A

False

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8
Q

If one sprinkler in a wet system goes off, do all of them go off T or F?

A

False

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9
Q

Define supervisory CCT?

A
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10
Q

Minimum size of 4 wire

A

22 AWG

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11
Q

Is Elevator recall supervised

A

NO

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12
Q

In class b, where is the last device

A

In the field (EOL)

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13
Q

Can you run wires in the same conduit

A

No

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14
Q

Residential smk can be connected to?

A

Lighting cct

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15
Q

Fire alarm have to 2 over riding purposes?

A

Eliminate injury and property damage

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16
Q

4 types of fire alarm system

A

Local, auxiliary proprietary and central station

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17
Q

What constitutes a fire alarm input

A

Smk detectors, heat sensors, pull stations

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18
Q

Outputs wired to the controller include?

A

Horns, bells, strobes or speakers

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19
Q

Where is the Annunciator is located

A

Main entrance or selected areas

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20
Q

4 stages of a fire

A

Incipient stage ( ionization smk)
Smouldering stage (photoelectric)
Flame stage (flame detector)
Heat stage( thermal detector)

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21
Q

Define photoelectric smk detector

A

Detects during 2nd stage of a fire

It has a circular chamber with overlapping porous cover

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22
Q

In a two stage after 5 minutes of being in alert mode it turns to alarm mode T OR F?

A

True

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23
Q

What would happen if, In a initiation cct a device or a connection came apart

A

Shows a trouble signal

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24
Q

What the minimum height of a pull sation

A

1050mm to 1150mm

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25
In a stair well, how often does a smk need to be placed
Every third floor (18 m)
26
When is a voice communication required by code
Over 3 stories (36m)
27
What are some of the systems that would be considered ancillary
HVAC systems, elevator recall
28
What’s the purpose of ancillary cct
To send control signals to other building
29
What are 2 signal required for elevator recall
Tell the elevator to return to its normal parking floor, if there’s a problem on this floor it will send it to an alternate floor.
30
What’s temp is orange rated for in sprinkler system
57 degree
31
Wet pipe sprinkler
Water is constantly maintained within the pipe and immediately discharged onto the fire
32
Where is Dry pipe used
Where temperature my freeze the water( unheated garages, cold storage)
33
What’s the ratio of pressure in a Dry pipe
6:1
34
How long for for a dry pipe to initiate
60 sec
35
3 parts of a fire triangle
Oxygen, fuel and heat
36
4 parts of a fire tetrahedron
Heat, fuel, oxygen and chain reaction
37
Which ones more expensive class B or A
Class A
38
Who performs the verification?
By qualified independent party
39
What’s a two stage system
When activated, causes panel to sound an alert and, after 5 minutes turn into alarm mode
40
Signal cct with ground fault shows what on the panel?
Trouble
41
Residential smks, if one goes off, what happens
They all go off
42
Can you use pig tails for heat detectors
No
43
O/C device must be identified with?
Red and locked in the ON position
44
How should Electrical supervisory device be wired?
In a way that’s is not possible to remove from the cct without causing a trouble
45
When should verification be preformed ?
Once all fire alarm equipment has been installed and no ground faults
46
The amount of signals devices used is dependent on?
The current draw of each particular device
47
Audible device rule
Each audible device most provide suitable terminals or integral leads for connection into the signal cct
48
Inverse square law
Distance from the sound source increases, the sound intensity is inversely proportional to square device
49
What are the 2 typical types of audible signal
Alert and alarm
50
Single stage system
When activated it causes the panel to sound the alarm
51
What are fire alarm system comprised of
Inputs( imitation, supervisory cct), a controller ( system brain), outputs( signaling, ancillary, auxiliary)
52
Local system is ?
Primarily to warn the occupants in the building
53
Auxiliary systems
have features of a local system with added features of automatically contacting the local fire department
54
Proprietary systems
This system is a central station that is located on the premises and constantly monitored by trained operators Transmits troubles and alerts signals to the central supervising station
55
Central stations
Alarm signals transmitted outside the protected premises to a monitoring company of fire department
56
Central stations
Alarm signals transmitted outside the protected premises to a monitoring company of fire department
57
When is a fire alarm system required
Fire alarm system must be constant, continuous operation, it is constantly monitored for faults
58
Power supplied to the fire alarm cct shall be
Provided from a separate cct
59
Heat Detectors cannot
Be connected using pigtails or Wire Connectors
60
In a Commercial Building a Fire Alarm System must abide by
The CEC, the OBC
61
In a Supervisory Circuit, a fault is caused when
A Supervised device such as a normally open water valve, is moved from its typical state
62
An EOL must be installed:
Less than 1800mm AFF to the center of the device
63
A Zone can be defined as:
An area reserved by Fire Detectors, and, A designated area of a Building
64
Backup Power must last?
at least 24 hours