Fire Alarm

Front 1

What are the four stages of a fire?

Back 1

Incipient stage (No smoke)

Smoke stage

Flame stage

High heat stage

Front 2

What are normal to bad oxygen %

Back 2

Normal 21%

Loss of thinking ability 17%

Impossible breathing 6%

Front 3

Three main parts of a basic fire alarm system?

Back 3

Fire Alarm control unit

Manual pull station

A Audible signal device

Front 4

What are the four conditions on a fire alarm system?

Back 4

Normal

Trouble

Alarm

Supervisory

Front 5

Single stage vs two stage?

Back 5

Two stage goes into alert not alarm then after keyed or 5mins goes into alarm

Front 6

How can emergency power be supplied to a fire alarm system?

Back 6

Batteries or generator or both

Front 7

What conditions must a Emergency power supply of a fire alarm system meet?

Back 7

Automatically/instantly transfer

Last not less than 24hrs in supervisory power

Minimum reserve capacity to last full load for 5mins to 2hrs

Front 8

Where are Annuciators located!

Back 8

Building principle entrance.

Usually with fire alarm panel.

Front 9

Voice communication system

Back 9

Consists of a two way communication and loudspeakers

Front 10

Two other forms of voice communication?

Back 10

Voice paging

Firefighters phone

Front 11

Major difference with a two stage pull station?

Back 11

Two circuits

Alert

Alarm

Front 12

What are three thermal or heat detectors?

Back 12

Fixed temp

Rise of rate

Anticipation

Front 13

Name two fixed temp devices

Back 13

Fusible link (One time use)

Bimetal

Front 14

Rise of rate detector has a?

Back 14

Diaphragm that contracts/expands

Front 15

What does a Rate of Anticipation Detector have?

Back 15

Copper tube with two isolated metal strips inside. Usually anticipated

3 degrees in advance

Front 16

What are smoke detectors for?

Back 16

Detect the earliest stages of a fire

Front 17

What are two types of smoke detectors?

Back 17

Ionization detectors

Photo electric

Front 18

How do Ionization detectors work?

Back 18

Radiation of a source ionizes nearby air and smoke limits it's current and initiates

Front 19

What are two Photo electric detector principles?

Back 19

Light scattering- light reflected by smoke to photocell

Light Obscuration- smoke blocks light to photocell

Front 20

How do flame detectors work?

Back 20

Infrared flame- detects burning wood, gas or oil

Ultra violet flame- detects burning

(Sensentive to) Gasoline

Front 21

What is a advantage and disadvantage of a flame detectors

Back 21

Fast reacting

Had to be in line of sight (see fire)

Front 22

What detector senses incipient stage?

Back 22

Ionization detectors

They sense any change in air density

Front 23

What sensor is the slowest but provides lowest false alarm?

Back 23

Thermal/ heat detectors

Front 24

What are two signalling devices?

Back 24

Audible - Always

Visual - optimal but close to the audible

Front 25

What are some Ancillary Equipment?

Back 25

Fire department signal connection

Fire department disconnect control

HVAC

Door release & door unlock

Elevator homing

Agent release

Automatic sprinkler systems

-wet pipe

-dry pipe

-pre action

(controlled by panel not heads)

-dulge

Front 26

What are smoke alarms

Back 26

Stand alone devices that are not part of a fire detection system

Can be interconnected

Front 27

How many councils are on the SAFETY CODES COUNCIL?

Back 27

10 councils

Front 28

What three councils do we refer to?

And what do they do?

Back 28

Building technical (design)

Electrical technical (installation)

Fire technical

(testing and maintenance)

Front 29

What is AHJ

Back 29

Authority Having Jurisdiction

Front 30

Who is responsible for testing and maintenance?

Back 30

Owner

Front 31

Difference between the VI and yearly inspection?

Back 31

Yearly not as comprehensive

Front 32

What is a Audit for

Back 32

Change of ownership

And meets current standards

Front 33

What groups do occupancy fall under in respect to FA

Back 33

A-F

Front 34

Example of a occupancy A group in respect to FA

Back 34

1- theatre's

2- churches, restaurants, schools

3- areanas

4- grandstand

Front 35

What occupancy group is residential under in respect to FA

Back 35

C

Front 36

Should a building have a fire alarm system if it has spinklers?

Back 36

Yes but some exceptions I the ABC

Front 37

What is occupant load calculated on?

Back 37

Number of fixed seats

Two people per sleeping room

Front 38

What occupancy capacity requires a fire alarm system?

Back 38

1st floor-

300 other than open air seating

On multi storey (including below)-

150

3 storey must have

Front 39

Fire decters should be installed if what is missing in a room?

Back 39

Sprinkler head

Front 40

Can you hook ancillary devices to FA system?

Back 40

Yes as long as it will not compromise the system

Front 41

What determines whether a fire alarm system must be a one stage or two stage.

Back 41

The occupancy classification

And building characteristics

Front 42

Can you have pull stations in stairwells?

Back 42

No

Front 43

What are the minimum distances from bedroom to smoke alarm and between alarms

Back 43

5m max from room

15 max between

Front 44

What device goes in-

Storage rooms

Service rooms

Maintenance/ janitorial rooms

Back 44

What detector

Front 45

What must be considered for conductors of a fire alarm system?

Back 45

Copper

Insulation not less than 300V

Sized for current

Encased in a metal raceway or armour

Front 46

Can you use stranded on a fire alarm system?

Back 46

Yes under conditions

Front 47

Smallest conductors for a fire alarm system?

Back 47

#16 in a raceway

#19 in tray

#22 multiconductor

Front 48

Three types of FA conductors?

Back 48

Unsheilded

Shielded

Amoured

Front 49

Can you share raceways with other systems in respect to FA?

Back 49

No

The only exception is specific termination points

Front 50

What colour is a FA breaker?

Back 50

Red

Also locked

Front 51

Does a fire pump have overloads?

Back 51

No just always run

Front 52

What is a class A circuit?

What is a class B circuit?

Back 52

A is return path to FA panel

B is EOL end of line resistor

Front 53

List three supporting devices of a Addressable system?

Back 53

Monitor module (Sup)

Signal module (interface non add)

Control module (interface ancil)

Front 54

What is a transponder?

Back 54

Transmits info from devices to a central alarm controll facility

Front 55

Can you tap a DLCB cable?

Back 55

Yes for volt drop not T sections

Front 56

What does a DLC use when passing through walls?

Back 56

Isolation modules

Front 57

Does a DCLB need a EOL

Back 57

No

But a module that feeds non addressable will

Front 58

When a gate valve is activated what condition appears?

Back 58

Supervisory