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Summative Test > Questions > Flashcards

Questions Flashcards

1
Q

First two steps of operational week assessment

A

Asses the task and persons involved and equipment available

Choose safe system of work

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2
Q

Describe flash point

A

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

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3
Q

Reason wall may become unstable

A

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

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4
Q

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

A

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

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5
Q

What is heat a form off?

A

Energy

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6
Q

Length and max pressure of 45 and 70 hose

A

23M and 15 bar pressure

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7
Q

Label a hydrant

A

H indicates the location

Size of the water main at top

Distance from the sign bottom number

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8
Q

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

A

So your glove doesn’t get wet

And have better control

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9
Q

Length and 90 and colour

A

30m and yellow

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10
Q

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

A

4000 and 2700

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11
Q

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

A

Kinetic

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12
Q

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

A

The supply is not being overrun

The correct pressure is delivered to the branches

The pump is performing correctly

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13
Q

A sudden increase in a low pressure gauge reading could indicate

A

Branches being shut down

Kinks in delivery Jose

Veichle or debris on delivery hose

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14
Q

3 factors that influence the amount of pressure loss

A

Output flow of water

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15
Q

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

A

1000lpm

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16
Q

Appliance inventories serve 3 purposes?

A

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

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17
Q

Well,slack cable,extend

A

Order when see slack cable on 135

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18
Q

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

A

Thickness of the timer. Any coatings or treatments.

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19
Q

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

A 
Level of supply dropped (tidal or source used up), 
2. suction
strainer blocked, 
3. branches
opened, 
4. burst
delivery hose
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20
Q 
Describe auto
-
ignition temperature (AIT)
A

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)

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21
Q

List the three methods of extinguishing a fire by b

reaking the triangle of fire (

A

Cooling, Starving, Smothering.

22
Q

List four features of all new hydrants

A

clockwise opening, leak detection device

23
Q

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

A

3.5-7 bar

24
Q

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

A

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

25
Q

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

A

8 x 18.3m

26
Q

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?

A

Empty appliance tank

27
Q

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

A

Length of hose

28
Q

What is the definition of a primer?

A

A device that pumps air

29
Q

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

A

1000 LPM

30
Q

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

A

Output of water flow. Length

of hose. Height of water source.

31
Q

Appliance inventories serve three purposes, what are they?

A

All equipment is present. Con

dition and readiness of all equipment. Check equipment is correctly stowed

32
Q

Define the term risk

A

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

33
Q

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

A

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

34
Q

What is a 90mm hose adaptor kit used for?

A

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

35
Q

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

A

1900lpm & 7 bar

36
Q

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

A 
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
37
Q

rate on the Rosenbauer ProJet II branch?

A

930lpm

38
Q

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

A

3 BARS

39
Q

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

A

Reduces noise, uses less fuel, better for the environment

40
Q

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

A

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

41
Q

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

A

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

42
Q

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

A

closed

43
Q

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

A

FALSE

44
Q

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

A

0.5 M

45
Q 
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.
A

3-5 rounds

46
Q

Define combustion

A

The irreversal chemical reaction that produces heat and light

47
Q

describe solid construction

A

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

48
Q

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

A

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

49
Q

3 checks when closing appliance shutter

A

equipment stowed correctly

all equipment is there
equipment in correct place

50
Q

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

A

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.

Summative Test (1 decks)

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