Fire Alarm

Front 1

Initiating devices/inputs

Back 1

pull stations

automatic detectors

Send the trigger to the control panel

Front 2

Signal device

Back 2

Produce a Audible or visible alarm, or both.

Bells, speakers, vibrating bells.

Front 3

Flashing lights and sirens are suitable for what location? What about Chimes.

Back 3

Flashing lights and sirens are suitable for high ambient noise, chimes, hospitals.

Front 4

Single stage system

Back 4

And device will sound a general alarm. For areas where people are able bodied.

Front 5

Two-stage system

Back 5

Device will first sound a alert signal, commonly 20 strokes per min on the bell. IF the alert is not responded too, the alarm will activate. 120 strokes per min

Requires 24 hour staff on location.

Front 6

Type 1 fire alarm

Back 6

Any device activates all alarms in the system.

Single stage, non coded, indicating, local, general alarm system.

Front 7

Type 2 fire alarm

Back 7

Equipped with a Annunciator to indicate which zone has been triggered.

Single staged, zoned, non-coded.

Front 8

Type 3 fire alarm

Back 8

Device causes a coded signal, repeats itself atleast four times, after the general alarm is sounded. Equipped with a annunciator.

Single stage.

Front 9

Type 4 fire alarm

Back 9

Two staged fire alarm.`

Non coded

Front 10

Type 5 fire alarm

Back 10

Indicated which zone was triggered though a first stage chime or bell.

Two stage, zone coded.

Front 11

Buildings like nursing homes require ___ zones per floor.

Back 11

Two zones per floor.

Front 12

A building with a area of 2000m or less and a maximum of three floors require ___ zone.

Back 12

One zone

Front 13

Detectors are to be placed at the highest point possible ex) top of a stair well

Back 13

A Manual pullstation is a mechanical switch that is normally open. Once opened it has to be manually reset with a key in most cases.

Front 14

Key operated Pull stations

Back 14

Two staged devices, once pulled a key hole is relieved. The key switch initiates the alarm.

Front 15

Type of Fixed temperature heat detectors

Back 15

Restorable type- Bi metal disk

Non restorable type- Uses a solder based pot to melt at a certain temperature. Tend to seperate due to vibrations.

Front 16

Combination fixed-temperature and Rate of rise heat detector

Back 16

Rate of rise closes contact if the air rises at a rate of "8C/min or higher". Gives it a shorter response time to a fire than a fixed temperature type. Has a fixed temperature as a back up.

Front 17

Rate of anticipation detector/rate-compensation heat detector

Back 17

Operation based on the expansion of metals. Fixed temperature, faster response time than the standard fixed-temperature detector. Due to a thermal lag time, which is a time delay.

Front 18

Type of smoke detectors

Back 18

Ionization type

Photoelectric

Front 19

Ionization detector/products of combustion smoke detector

Back 19

Contains a small quantity of radioactive material. Smoke or particles will stop the current flow, closes a contact to signal activity.

More sensitive than photoelectric, but more likely to set off a false alarm.

Front 20

Photoelectric detector/obstruction smoke detector

Back 20

Smoke enters it, blocking or scattering the light beam, setting off the alarm.

Front 21

Single stroke bell

Back 21

similiar to the vibrating bell, often used for the alert stages of fire alarms. Usually used to give both the signal-stroke sound and the alarm sound.

Front 22

Chimes

Back 22

Low intensity sound device

Front 23

Horns and sirens

Back 23

Suitable for locations of high ambient noises, or where bells are commonly used for other purposes.

Front 24

Are visual devices allowed to be stand-alone?

Back 24

No, they have to be paired with a audible device

Front 25

Loudspeakers FA

Back 25

If loudspeakers are installed for more then the fire alarm purpose, they must be installed so the fire alarm signals take priority over all other signals.

Front 26

Will a open or ground put the system into alarm?

Back 26

No, but it will display a trouble signal, as will a audible and visual signal.

Front 27

Class A wiring

Back 27

Each device is supplied from two directions. This means a open circuit will not disable any devices.

Front 28

Can the primary and return path be in the same conduit?

Back 28

No, nien, negative 3.3.1.3

Front 29

Class B wiring

Back 29

Supplies the devices from one direction only. If a opening occurs all the devices downstream will be out of commission. Uses a EOL

Front 30

A group of smoke or heat detectors is usually connected to a ____ in class B wirings

Back 30

Transponder

A transponder is a multiplexer

Front 31

How is the transponder connected to the control panel?

Back 31

Connected to the control panel by a twisted pair of shielded wires.

Front 32

Manual pull station height

Back 32

1200mm-1400mm

Front 33

Audible speaker height

Back 33

Centre of the device not less than 1.8m

Front 34

Control panel height

Back 34

Must not be more than 2.4m above the finished floor

Front 35

Annunciator height

Back 35

No more than 2.4m above the finished floor

Front 36

Height of EOL

Back 36

Not more than 1.8m above finished floor

Front 37

Smallest conductor size in a FA system

Back 37

#22AWG, can only be used when it is a part of a cable having a minimum of four conductors.

Front 38

What would you use on a FA circuit to find shorts, opens or ground faults?

Back 38

A good OHM meter

Do not use a megger!

Front 39

A single ground fault on the circuit will not prevent the operation of the system, what could happen if a second ground fault appeared?

Back 39

Could result in a alarm condition, or a blown fuse.

Front 40

A ground fault will indicate a ____ resistance between a wire and a ground

Back 40

Low resistance

Front 41

How do you check a ground fault in a CLASS A circuit?

Back 41

The EOL is connected across the leads in the control panel (Because Class A circuits do not require a EOL)

Front 42

How many persons will be required to test a FA

Back 42

Three

Front 43

A % of the non-restorable types must be tested

All tests must be recorded and documented

Back 43

A % of the non-restorable types must be tested

Front 44

Short the wires for the flow pump test.

Short the wires for a solder pot device to test.

Back 44

Short the wires for the flow pump test.Short the wires for a solder pot device to test.

Front 45

Are all thermal detectors restorable types?

Back 45

NO

Front 46

Which type of smoke detector would be most suitable in a area of high ambient humidity?

Back 46

Photoelectric type

Front 47

Common voltage used in FA wiring

Back 47

24v DC

Front 48

Standby battery in FA has to supply the supervisory current for how long?

Back 48

24 hours, plus 5 mins for something ill come back to this..

Front 49

Which class uses the EOL resistor?

Back 49

Class B

Front 50

What type of FA requires a annunciator panel?

Back 50

More than one zone

Front 51

CEC about stranded wires

Back 51

More than 7 strands must be bunch tinned, or else terminated in compression connectors.

Front 52

CEC for cct breaker for FA

Back 52

Close as possible to the power supply

Painted red

Held close

Front 53

Why would you connect an EOL to the output wiring terminals in place of the signal or initiating wires when making a ohm meter test?

Back 53

To check if the problem is in the control panel

Front 54

Some but not all pull stations are required to be tested in a FA system?

Back 54

False, all of the pull stations, smokes, heat detectors and some of the non-restorible devices