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Fire Alarm > Fire Alarm Test 1 > Flashcards

Fire Alarm Test 1 Flashcards

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
Q

In a stair well, how often does a smk need to be placed

A

Every third floor (18 m)

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26
Q

When is a voice communication required by code

A

Over 3 stories (36m)

27
Q

What are some of the systems that would be considered ancillary

A

HVAC systems, elevator recall

28
Q

What’s the purpose of ancillary cct

A

To send control signals to other building

29
Q

What are 2 signal required for elevator recall

A

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
Q

What’s temp is orange rated for in sprinkler system

A

57 degree

31
Q

Wet pipe sprinkler

A

Water is constantly maintained within the pipe and immediately discharged onto the fire

32
Q

Where is Dry pipe used

A

Where temperature my freeze the water( unheated garages, cold storage)

33
Q

What’s the ratio of pressure in a Dry pipe

A

6:1

34
Q

How long for for a dry pipe to initiate

A

60 sec

35
Q

3 parts of a fire triangle

A

Oxygen, fuel and heat

36
Q

4 parts of a fire tetrahedron

A

Heat, fuel, oxygen and chain reaction

37
Q

Which ones more expensive class B or A

A

Class A

38
Q

Who performs the verification?

A

By qualified independent party

39
Q

What’s a two stage system

A

When activated, causes panel to sound an alert and, after 5 minutes turn into alarm mode

40
Q

Signal cct with ground fault shows what on the panel?

A

Trouble

41
Q

Residential smks, if one goes off, what happens

A

They all go off

42
Q

Can you use pig tails for heat detectors

A

No

43
Q

O/C device must be identified with?

A

Red and locked in the ON position

44
Q

How should Electrical supervisory device be wired?

A

In a way that’s is not possible to remove from the cct without causing a trouble

45
Q

When should verification be preformed ?

A

Once all fire alarm equipment has been installed and no ground faults

46
Q

The amount of signals devices used is dependent on?

A

The current draw of each particular device

47
Q

Audible device rule

A

Each audible device most provide suitable terminals or integral leads for connection into the signal cct

48
Q

Inverse square law

A

Distance from the sound source increases, the sound intensity is inversely proportional to square device

49
Q

What are the 2 typical types of audible signal

A

Alert and alarm

50
Q

Single stage system

A

When activated it causes the panel to sound the alarm

51
Q

What are fire alarm system comprised of

A

Inputs( imitation, supervisory cct), a controller ( system brain), outputs( signaling, ancillary, auxiliary)

52
Q

Local system is ?

A

Primarily to warn the occupants in the building

53
Q

Auxiliary systems

A

have features of a local system with added features of automatically contacting the local fire department

54
Q

Proprietary systems

A

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
Q

Central stations

A

Alarm signals transmitted outside the protected premises to a monitoring company of fire department

56
Q

Central stations

A

Alarm signals transmitted outside the protected premises to a monitoring company of fire department

57
Q

When is a fire alarm system required

A

Fire alarm system must be constant, continuous operation, it is constantly monitored for faults

58
Q

Power supplied to the fire alarm cct shall be

A

Provided from a separate cct

59
Q

Heat Detectors cannot

A

Be connected using pigtails or Wire Connectors

60
Q

In a Commercial Building a Fire Alarm System must abide by

A

The CEC, the OBC

61
Q

In a Supervisory Circuit, a fault is caused when

A

A Supervised device such as a normally open water valve, is moved from its typical state

62
Q

An EOL must be installed:

A

Less than 1800mm AFF to the center of the device

63
Q

A Zone can be defined as:

A

An area reserved by Fire Detectors, and, A designated area of a Building

64
Q

Backup Power must last?

A

at least 24 hours

Fire Alarm (1 decks)

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