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Wildland > Chapter 6 > Flashcards

Chapter 6 Flashcards

1
Q

Three main basic requirements for an engine to run

A

Fuel
Air
Spark

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2
Q

How does an engine work ?

A

Fuel supply to the engine chamber
Field passes through the carburetter where it’s mixed with air before entering the ignition cylinder
Electronic, spark from the spark plugs, ignites the fuel and air mixture

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3
Q

Most common type of pump in firefighting

A

Centrifugal pump

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4
Q

What does primed mean

A

The pump had to be full of water

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5
Q

What causes a pump to lose its prime?

A

When air is introduced to the pump, it will stop pumping water

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6
Q

What kind of stroke are most engines?

A

2 strokes

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7
Q

What is the mix gas ratio?

A

50:1

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8
Q

What do four stroke engines mean for fuel?

A

Straight gas

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9
Q

Suction hose

A

This is a non-collapsing hose that allows water to be drawn from the water source into the pump head

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10
Q

Footvauls

A

Football threats onto the mail, end of the suction hose, and there’s a one-way valve to prevent water from pulling back and out. It has a screen which helps provide debris from entering the pump, end

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11
Q

What must the valve spring and rubber plunger do?

A

Work together to form a seal with a rubber washer that is properly seated in the female threads

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12
Q

Fuel line

A

The fuel line is inserted into the fuel container the black plastic cap is that it onto the spout opening of the container the gray female connecter often called Mark fitting attaches to the pump

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13
Q

Hose coupling wrench

A

The hose coupling wrench is used to tighten or loosen the intake hose couplings attached to the pump end. It also used to tighten or loosen the priming cap of the pump as well. Any 1/4 term quick connect fittings that are stuck together.

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14
Q

stranglers

A

 Are used to restrict water flow in one and a half inch hose line the restriction laws for firefighters to add or remove lengths of hose

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15
Q

How much space conflict between the jaws of the stranglers

A

1/8or 3mm

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16
Q

Street stream nozzles provide generally high and low

A

High pressure low volume

17
Q

Popular type of adjustable stream nozzle

A

Hanson nozzle

18
Q

Some uses for straight stream nozzles

A

To construct fire guards
Dig holes
Penetrate splash or heavy, feels

19
Q

Fog Nockels provide high and low what

A

High volume, low pressure

20
Q

Why don’t we put suction hose is on the bottom

A

You can suck up debris, sand, gravel, and damage pump

21
Q

Why can’t we put pumps on tonight or slope?

A

It can vibrate into the mud and fall down the hill

22
Q

Death of water and needs to be in

A

Football needs to be a minimum of 20 cm are in 8 inches
to avoid sucking air

23
Q

Ways to protect the pot value

A

Tie it to a shovel, anchor shovel at the bottom, tie it to a log use a floating walk or buoyant objects rested on rocks

24
Q

Steps to prep pump

A

Connect fuel line to fuel tank
Open air vent located on top of your tank
Attach to engine
Squeeze the primer bulb several times, until the gas appears in the fuel line
Check foot valve
Phil suction hose with water by deafening it into the water
Attach suction hose to pump
Open top cap on pump
Prime it

25
Q

Steps to start pump

A

Set choke for cold engines
Set throttle lever to start sauce, warm up position
Turn on
Checks at the over speed cut outs, which is pushed in
Study the pump and start pulling
What’s the engine is started put choke and run position. Is the engine warms up
Oh wow engine to warm up for at least two minutes before running full throttle

26
Q

4 reasons pump isn’t running properly

A

Fuel
Spark
Flooding
Lots of prime

27
Q

Problems with fuel

A

Wrong mixture
Is there enough fuel ( getting to the calibre)
Is the vent Cap lose
Is Fuel lines, primed
Is there too much fuel?

28
Q

Problems with spark

A

The rest rod is in the wrong position for starting
The engine is switched off
Spark, plug top attached properly
Spark plugs, Burt

29
Q

Air promblems

A

Is the air filter dirty?
Is the carburetter lose?

30
Q

Flooding

A

If the spark plugs are with the engine has flooded
Sweating results from over choking

31
Q

What causes a lose of prime

A

Foot valve plugged
Missing gasket
clogged suction hose

Wildland (8 decks)

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