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Fire Brigade training > Pumps And Pumping > Flashcards

Pumps And Pumping Flashcards

1
Q

Hose reel pressure will be delivered at 3-4 times more than main delivery when both being used at same time

Mustn’t be more due to safety

A

.

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2
Q

Should an appliance inventory be carried out before leaving an incident?

A

Yes

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3
Q

When are seatbelts checked?

A

Start of every watch.

Defects reported to crew or watch manager AND driver

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4
Q

Pump closest to water source in water relay is called?

A

Base pump

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5
Q

3 types of pumping appliance?

A

Pump

Pump ladder

Duel purpose pump ladder

All look identical other than their stowage

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6
Q

Near side and offside?

A

Near side to kerb

Offside on drivers side

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7
Q

Stop signal?

A

Right hand up, palm towards driver

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8
Q

Danger signal?

A

Both arms up, palms towards driver

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9
Q

Move away signal?

A

Opposite of move towards

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10
Q

Single crewed vehicles must never be manoeuvred on LFB premises with out an attendant.

Try not to drive into position where you need to reverse out from

Physically check behind vehicle if unsure

A

.

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11
Q

2 parts of centralfugal pump?

A

Impeller

Volute

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12
Q

2 types of water relaying?

A

Closed circuit
(Water pumped through hose direct from one pump to the next)

Open circuit
(Water pumped through hose to portable dams/reservoirs/appliance tank before entering next pump)

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13
Q

2 types of pump found on front line appliances?

A

Centralfugal pump

Positive displacement pump.

Machines driven by external power to give energy to fluid

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14
Q

Peripheral impeller?

A

Allows for greater amount of pressure to be produced.

Godiva World Series has this

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15
Q

What prevents over hearing of a pump?

A

Thermal relief valve

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16
Q

How many lights on tank level indicator?

A

4 red light.

Each represents 25% of tank level

All 4 will flash when tank empty

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17
Q

How does internal diameter of hose effect pressure loss?

A

The smaller the internal diameter the more frictional loss

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18
Q

Can centralfugal pumps pump gas and air?

A

No

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19
Q

Which number deliveries are hydracilcly more most efficient on the pump?

A

2 and 3 due to layout

Can deliver 100lpm more

Useful for supplying arial appliance, water relaying and other times which need more water

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20
Q

High pressure gauge?

A

Shows pressure being delivered to hose reels

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21
Q

Pump ladder description?

A

Minimum crew of 4

Main rescue appliance at 2 appliance stations

Carried 135 ladder (13.5 meter long)

Carries rescue equipment for people trapped in vehicles

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22
Q

Do firefighters have to wear seatbelts when moving?

A

Yes

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23
Q

What hose usually fills tank from hydrant?

A

2 70mm.

Inlet on right hand side of pump bay

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24
Q

Low pressure gauge reading?

A

Used to make sure correct pressure is being deliver to branch operators

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25
Q

What colour does the battery level light flash in cab of battery level is low?

A

Green

Must be pressed before attempting to start vehicle

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26
Q

What does high pressure gauge measure?

A

Pressure being delivered to hosereels hoses

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27
Q

How to regulate amount of water being used to prevent overrunning?

A

Reduce number of jets

Reduce branch flow settings

Reduce appliance engine revs

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28
Q

Should water supplies be twinned from the same source? (Hydrant/appliance)?

A

YES

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29
Q

When are locker shutters inspected?

A

Inspected by the driver at change of watch.

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30
Q

PTO (power take off) procedures?

On series one

A

Carry out engine start procedures

Operate rocker type button on dashboard

Operate air dump switch in pump bay (must be reset before moving appliance again)

Press and hold function (master) button and at same time press PTO switch in pump bay until light comes on.

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31
Q

Move to attendants left?

A

Left arm out, palm towards driver

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32
Q

3 purposes of carrying out appliance inventory?

A

Equipment checks

Condition checks

Inventory checks

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33
Q

Hose reel pressure switch?

A

Must be switched to high pressure to deliver high pressure to hose reels

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34
Q

Check that blue arrows are in line on locker shutters and pillars on appliance.

A

.

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35
Q

What does the flow meter mesure?

A

Flow rate of water going into the water tank.

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36
Q

Where to stand when reversing a appliance?

A

Between 5 and 10 meters behind, and 1 meter to the side.

So driver can see you in wing mirror

37
Q

Dismount appliance side away from moving traffic

A

.

38
Q

Where is water tank located on appliance?

A

In centre

Behind the pump

39
Q

Bypass valve?

A

Pulled when auto fill valve fails in closed position meaning water tank is not being filled.

Delivers upto 1000lpm

Can be very dangerous for crews firefighting.jy

40
Q

Hose reels switches must be switched to low when not in use

A

.

41
Q

Inlet flow meter?

A

Measures water going into tank at lpm

42
Q

Cab lockers be centrally locked from cab?

A

Yes

43
Q

PTO procedure for series 2?

A

Carry out engine start up procedures

Press spring loaded incident switch in cab until light comes on

Continue as series one

44
Q

Tank/water to pump switch?

A

When pressed allows water from tank to enter pump

45
Q

What does the distance between pumps in a water relay depend on?

A

The flow required

Size of hose between pumps

Contours of the relay route

46
Q

Watch manager must be kept informed of anything that cannot be replaced like equipment, or any appliance defects

A

.

47
Q

Overrunning the supply?

A

Pump is using more water than is being supplied meaning Running out of water in tank.

48
Q

Pump between base pump and foreground pump are called?

A

Intermediate pumps

49
Q

What must vehicle attendants wear?

A

High viz

50
Q

Where should LLPs be based if appliance and LLPs are being used in water relay?

A

LLPs must be sited closest to the water source

51
Q

Universal multi pressure pump?

A

2 stage pump,

Special type of impeller to allow higher pressure to be produced

52
Q

Whos safety are firefighters responsible for?

A

Their own

Other firefighters

The public

53
Q

If leaving a delivery open for cooling, a 70mm hose should be attached to direct water away.

Disengagement of PTO can also reduce overheating

A

.

54
Q

Main pump used by LFB appliances?

A

Godiva World Series multi pressure pump.

2 stage pump

Can be used to:

High volumes of water at low pressure

Low volumes of water at high pressure

Both simultaneously

55
Q

Auto fill vale?

A

Stops water tank becoming overfilled when filling up

56
Q

At what speed should a vehicle be manouvered when using a attendant?

A

Slow walking pace

57
Q

If the relay is producing insufficient flow, within the capabilities of the pumps, how can output be improved?

A

Shortening the distance between pumps by using more intermediate pumps.

Increasing the size (diameter) of hose

58
Q

Operating considerations of a water relay being effective ? (4)

A

All pumps and other equipment being in good working order

Layout of relay being organised in a way that it’s used to its full capacity

Skill of the operators

Good communication and incident management

59
Q

Duel purpose pump ladder description?

A

Minimum crew of 5

Carry 9 and 13.5 ladders

Carries rescue equipment

Cover all calls on station ground

Found on stations with only one appliance

60
Q

Beam ladder gantries?

A

On top of appliances to help removal of ladders and other equipment on roof

61
Q

What is augmenting the supply?

A

Working the amount of time a water supply will last when an appliance is pumping.

Number of jets in use, flow rate of jets, and flow rate of inlet will effect this.

62
Q

What could a low pressure reading in a low pressure gauge indicate?

A

Branches being opened

Burst delivery hose

Water tank is empty

63
Q

Pump appliance description?

A

Minimum crew of 4

Attends almost all incidents

Some carry addition light portable pumps

Main ladder is 9 metres long

64
Q

Pumping engine speed joystick?

A

Increases or decreases the speed of the pump

65
Q

Hose reel LH

Hose reel RH

Switches?

A

Pressed to open to allow delivery to either left or right hose reels or both at same time

66
Q

What could a high pressure reading in a low pressure gauge indicate?

A

Branches being closed

Kinks

Vehicle on hose

67
Q

Move towards attendant signal?

A

Both arms are ber, palms facing upwards, moments towards attendants body

68
Q

Godiva World Series fire pump can produce how many litres per minute?

A

Capable of 4000 lpm

Only delivers 2700lpm

69
Q

The higher the required output, the higher amount of frictional loss there will be.

A

.

70
Q

Pump gauges?

A

Water tank level

Rev counter

Compound gauge

High pressure gauge

Low pressure gauge

71
Q

The water tank should be refilled from nearest hydrant before leaving an incident

A

.

72
Q

What’s the power take off (PTO) on a series 1?

A

Transfers power from wheels to to appliance pump.

73
Q

What is the aim of a water relay?

A

To deliver the maximum delivery of water, using the least amount of equipment

74
Q

Pump function button?

A

Master switch.

Must be held when operating other pump control switches

75
Q

There should be no loose equipment in crew cab of appliance

A

.

76
Q

Appliance care and maintenance?

A

Checked by driver at every start of shift

Fuel, lubricants, Coolents etc must be replenished

General condition recorded in daily check

Must be kept clean for professional image and to stop detoeriation

Any defects brought to attention of driver or appliance commander ASAP

77
Q

What is the capacity of water and foam on the Godiva World Series pump?

A

1400 litres for water

127 for foam

78
Q

Move to attendants right?

A

Right arm out, palm towards driver

79
Q

What type of centralfugal pump is on a appliance?

Allows a pherihal impeller cresting a greater pressure

A

Universal multi pressure pump.

80
Q

The 2 main reasons for reduction in pressure?

A

Frictional loss in hose

Effects of gravity when working above the supply of water

81
Q

What does low pressure gauge mesure?

A

Pressure being supplied to main delivery hoses

82
Q

Can a positive displacement pump pump gas or air?

A

Yes

83
Q

Who is responsible for safety when manoeuvring a vechicle?

A

The driver at all times

Must ensure all equipment has been stowed and lockers are closed also.

84
Q

Vehicle attendants are responsible for ensuring they give correct and timely signals to driver

A

.

85
Q

What does the compound gauge mesure?

A

Pressure in bar from inlet.

Positive of from hydrant

Negative if sucking from open water

86
Q

PTO switch?

A

Engages PTO

Moveds engine from wheels to pump

87
Q

Should the hydrant be connected before engaging the PTO valve?

A

No

88
Q

What should be done if a length of soft suction hose supplying the tank from hydrant bursts?

A

Inlet valve on collection head should be closed until hydrant can be shut down and hose replaced

Fire Brigade training (13 decks)

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