Questions

Question 1

First two steps of operational week assessment

Answer 1

Asses the task and persons involved and equipment available

Choose safe system of work

Question 2

Describe flash point

Answer 2

Flash points is when sufficient vapours are being introduced as to when a ignition source is introduced a monumental flash will occur, burning of vapours will not continue when ignition source is taken away

Question 3

Reason wall may become unstable

Answer 3

collapse of a floor can leave high walls unsupported

joists and beams can have levering effect on the walls

floor collapses can create a shock load

fire damage

Question 4

Which of the following statements about roof construction is false a, b, c or
d

Answer 4

a)
There are fewer timbers in the modern r
oof
b)
The timbers used to make gang nailed roof trusses are thicker than those used in older roofs
c)
Tests on soft woods have shown that it takes about 7 minutes to char to a depth of 4mm. This will
severely weaken a roof with truss plates
.
d)
Roofs made from tru
sses are designed so that the weight of the roof is spread across the whole
structure. Failure of any of the roof members places an additional load on adjacent

Question 5

What is heat a form off?

Answer 5

Energy

Question 6

Length and max pressure of 45 and 70 hose

Answer 6

23M and 15 bar pressure

Question 7

Label a hydrant

Answer 7

H indicates the location

Size of the water main at top

Distance from the sign bottom number

Question 8

When adjusting branch and flow settings why put hand on top off branch

Answer 8

So your glove doesn’t get wet

And have better control

Question 9

Length and 90 and colour

Answer 9

30m and yellow

Question 10

The goldivia World Series pump is capable of prouding …. lpm. The output is limited to …. lpm when work via appliance tank

Answer 10

4000 and 2700

Question 11

Why type of energy does impeller transfer to water on a single stage centrifugal pump

Answer 11

Kinetic

Question 12

Why should pump operator monitor their gauge,flow meteres, and water contents

Answer 12

The supply is not being overrun

The correct pressure is delivered to the branches

The pump is performing correctly

Question 13

A sudden increase in a low pressure gauge reading could indicate

Answer 13

Branches being shut down

Kinks in delivery Jose

Veichle or debris on delivery hose

Question 14

3 factors that influence the amount of pressure loss

Answer 14

Output flow of water

Question 15

How much water can be delivered into tank when bypass valve is operated

Answer 15

1000lpm

Question 16

Appliance inventories serve 3 purposes?

Answer 16

If everything is there
Re stock equipment and replace
Stored in correct place

Question 17

Well,slack cable,extend

Answer 17

Order when see slack cable on 135

Question 18

The fire resistance of timber depends on the type of wood and two other factors. List the two other
factors. (2 marks)

Answer 18

Thickness of the timer. Any coatings or treatments.

Question 19

When pump operating from an open water supply, state four reasons why the com
pound gauge should
indicate an increased vacuum reading

Answer 19

Level of supply dropped (tidal or source used up), 
2. suction
strainer blocked, 
3. branches
opened, 
4. burst
delivery hose

Question 20

Describe auto
-
ignition temperature (AIT)

Answer 20

This is th
e lowest temperature at which a fuel will ignite and continue to burn without the need for an
ignition source to be introduced. It is often referred to as the spontaneous ignition temperature (S.I.T)

Question 21

List the three methods of extinguishing a fire by b

reaking the triangle of fire (

Answer 21

Cooling, Starving, Smothering.

Question 22

List four features of all new hydrants

Answer 22

clockwise opening, leak detection device

Question 23

What is the effective working pressure gauge of the Rosenbauer
ProJet
II?

Answer 23

3.5-7 bar

Question 24

List the three reasons when a ground monitor may be used in preference to hand held branches

Answer 24

A larger volume of water or foam is required than can be provided by hand controlled branches.

Operations require extingu
ishing media to be thrown a greater distance.

Operations require extinguishing media over long time periods in the same area of operation, for
example, foam attack, cooling of surfaces, large fires

Question 25

How many lengt hs of hosereel hose is carried on an appliance and how long is each length

Answer 25

8 x 18.3m

Question 26

When pumping, a sudden decrease in a low pressure gauge reading could indicate a branch being opened or a burst delivery hose. What other occurrence could this indicate?

Answer 26

Empty appliance tank

Question 27

What is the single most important factor which affects frictional loss and causes a gradual loss of pressure

Answer 27

Length of hose

Question 28

What is the definition of a primer?

Answer 28

A device that pumps air

Question 29

What is the maximum output, in LPM of the Rosenbauer light portable pump when operating at 4 bar ? (1 mark)

Answer 29

1000 LPM

Question 30

The internal diam eter of a hose is a factor that influences the amount of pressure loss. List the other three factors that influences the amount of pressure loss

Answer 30

Output of water flow. Length | of hose. Height of water source.

Question 31

Appliance inventories serve three purposes, what are they?

Answer 31

All equipment is present. Con | dition and readiness of all equipment. Check equipment is correctly stowed

Question 32

Define the term risk

Answer 32

Risk is the likelihood of a hazard causing harm and the severity of it.

Question 33

The effect of a fire on the walls of a building can cause the building to collapse. One reason is cracked or dropped arches over windows, doors and other openings. Give three other reasons why a wall may become unstable

Answer 33

Cracks in lower parts of the walls. Walls bow outwards and collapse. Collapse of floors.

Question 34

What is a 90mm hose adaptor kit used for?

Answer 34

For connecting Storz coupling to appliance pump and standpipe o utlet.

Question 35

What is the maximum flow rate of the Akron Mercury ground monitor and what is its optimum operating pressure

Answer 35

1900lpm & 7 bar

Question 36

State four measures firefighters can take to control the jet reaction?

Answer 36

``` Adopt a position on even and stable ground (not icy, slippery or covered in rubble).  Start with a pressure and flow - rate that can be coped with and increase the flow - rate/ pressure as and when required.  Have at least two firefighters on the branch when working with high flo w - rates and high pressures and open and close the branch slowly.  Make sure the hose runs out in a straight line behind the branch operator ```

Question 37

What is the maximum flow - rate on the Rosenbauer ProJet II branch?

Answer 37

930lpm

Question 38

The specified working pr essure for a Rosenbauer R101 branch is 6 bars for all flow settings. However, the branch will still operate effectively down to 3 bars if the optimum pressure cannot be achieved

Answer 38

3 BARS

Question 39

State the three benefits of switching the “HOSE REEL PRESSURE” switch to low pressure when the hose reels are not required?

Answer 39

Reduces noise, uses less fuel, better for the environment

Question 40

When a pump operating from an open water supply, state three reasons why the compound gauge should indicate decre ased reading

Answer 40

Level of supply raised (tidal), 2. branches shut down, 3.air leak on suction side of pump.

Question 41

The output flow of water is a factor that influences the amount of pressure loss. List the other three factors that influence the amount o f pressure loss

Answer 41

Internal diameter of hose, length of hose, height of water source

Question 42

When setting up the pump ready to lift from open water, what position should the tank to pump switch be in?

Answer 42

closed

Question 43

A Rosenbauer LPP can be run against closed deliveries True or False

Answer 43

FALSE

Question 44

When securing delivery hose aloft, how below the sill should the rolling hitch be positioned

Answer 44

0.5 M

Question 45

``` When pitching a 9m ladder into a narrow opening, the head of the ladder must be at least 3 - 5 rounds above or below the sill. ```

Answer 45

3-5 rounds

Question 46

Define combustion

Answer 46

The irreversal chemical reaction that produces heat and light

Question 47

describe solid construction

Answer 47

load bearing walla which support floor and roof most common materials are brick stone or concrete cast iron columns support either cast iron or timber beams beams are bedded into load bearing walls

Question 48

One of the four safety considerations when working with a ladder is not to overload the ladder. Unless assisting a casualty down the ladder, a maximum of one person per extension is allowed. List the other three safety considerations

Answer 48

three points of contact do not overreach do not work on the top three rounds

Question 49

3 checks when closing appliance shutter

Answer 49

equipment stowed correctly all equipment is there equipment in correct place

Question 50

3 acceptable of carrying line up a ladder when line bag is not available

Answer 50

Line without bag : (made up) in 8 with arms through loop across back. - Line without bag : (not made up) over head and shoulder diagonally. - Loose line : with overhand knot in end and placed over shoulder.