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CFD Training Academy Study > Ch12 Fire Hose > Flashcards

Ch12 Fire Hose Flashcards

1
Q

CFD categorizes hose into two categories…

A

Supply and attack

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2
Q

What is a pony hose?

A

Any hose that is cut shorter than its regular length.

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3
Q

What is the direction of egress with couplings?

A

Smooth, bump, bump, to the pump

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4
Q

What is the name of the non-threaded coupling on supply lines?

A

Stortz

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5
Q

What are the CFD 5 methods for coupling/uncoupling hose…

A 
One FF over the hip
One FF foot tilt
Two FF method
One FF knee press
Two FF stiff arm method
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6
Q

What is the hose complement on CFD engines?

A
  • 4 lengths of 19mm = 90m (2-30m, 2-15m)
    Forestry hose (blue)
  • 2 lengths of 44mm = 30m
    Trash line or bumper line located in front bumper
  • 8 lengths of 44mm = 120m (4 yellow, 4 orange)
    2 transverse beds of 60m in each bed
    1 transverse is yellow (first transverse bed)
    1 transverse is orange (middle transverse bed)
  • 1 length of 44mm (30m) has smooth bore
    Hose bundle (high rise)
  • 1 length of 65mm (15m)
    Hose bundle (high rise)
  • 4 lengths of 65mm (60m)
    Pre-connected in a transverse
  • 18 lenghts of 65mm (270m)
    Attack bed (devils load)
  • 10 lenghts of 126mm (300m)
    Supply bed
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7
Q

What are the three CFD methods of rolling hose?

A

Service Roll
Damaged Roll
Single Donut Roll

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8
Q

Explain how a service roll is done…

A

Start with the male coupling and roll towards the female. (Female is on the outside indicating that it is ready for use).

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9
Q

Explain how a damaged roll is preformed…

A

Start with the female end and roll towards the male end. The male end out signifies damaged and should also be tagged out of service.

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10
Q

Explain how the single donut is preformed…

A

This is done on 125mm pony lines. The two fitting are placed a few meters from each other with the hose folded on itself then rolled from the fold to the couplings with the couplings on the outside.

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11
Q

When is hose testing and inspection done? CFD manual…

A

Annually (black marker is used to mark the year)
After repairs
After hard use
On any suspicion of damage

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12
Q

On CFD engines, what is the area called where the 2 sets of 4 44mm hoses are?

A

Transverse bed

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13
Q

What are hose appliances?

A

A device that is used to control the flow of water or create a pathway for water through hose layouts

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14
Q

What is a “wye” appliance?

A

A “wye” consists of two male connections and one female connection.

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15
Q

What is a “siamese” appliance?

A

A “siamese” consists of two female connections and one male connection.

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16
Q

As water is vaporized into steam, it expands approximately ____ its original volume.

A

1700x

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17
Q

What are the three main categories of nozzles?

A

Hand lines
Master streams (Fixed, portable, combination, and elevated)
Specialty nozzles

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18
Q

Smooth bore nozzles produce what type of stream?

A

Solid stream

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19
Q

In regards to a co-axial nozzle, the “bumper” produces what two type of streams?

A

Fog and straight stream

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20
Q

On a 44mm Saberjet nozzle, what pressure is maximum pressure for the smooth bore and fog waterway?

A

350 kpa

21
Q

On a 65mm Saberjet nozzle, what pressure is maximum pressure for the smooth bore and fog waterway?

A

350 kpa

22
Q

With STACKED TIPS on a Blitzfire, what is the nozzle pressure? (masterstream)

A

550 kpa

23
Q

With a FOG TIP on a Blitzfire, what is the nozzle pressure? (masterstream)

A

700 kpa

24
Q

What are three types of valves?

A

Ball
Slide
Rotary

25
Q

When joining two sections of hose, the coupling should be tightened by…

A

Tightened by hand. Do not use hose spanners.

26
Q

Where is the male coupling and nozzle on the high rise bundle (44mm)…

A

Attached to the TFT nozzle on the inside

27
Q

What are specialty nozzles with the CFD?

A

Ram piercing nozzle
Exposure nozzle
19mm forestry nozzle

28
Q

What is the most common construction material used for hose fittings…

A

Brass and aluminum.

But CFD uses Pyrolite.

29
Q

What is the required hose replacement station compliment for 44mmx15m?

A

Full compliment in the station. This is one length for every length on the apparatus.

30
Q

What is the required hose replacement station compliment for 44mmx30m?

A

Full compliment in the station. This is one length for every length on the apparatus.

31
Q

What is the required hose replacement station compliment for 65mmx15m?

A

There are 10 lengths of replacement for each engine in station.

32
Q

Where is the replacement hose compliment for 77mmx15m?

A

4 lengths in each District Chief station.

33
Q

Where is the replacement hose compliment for 25mmx15m forestry hose?

A

4 lengths in each District Chief station.

34
Q

Corrosion… p555
Corrosion happens when a substance in the environment gradually weakens metal over time. The metal is slowly converted into a weaker compound. The most common couplings metals are aluminum and brass (CFD uses Pyrolite). Each of these possess a high resistance to corrosion but will suffer some deterioration when exposed to certain conditions.

A

Brass is highly resistant to corrosion. Overtime, however, a brass coupling will corrode when it is in contact with moist organic materials or earth.

Aluminum couplings develop a layer of corrosion (aluminum oxide) that in effect “seals” the metal against further oxidization. This layer can be be scratched or abraded during use an a new layer will form over time.

35
Q

Hard suction hose…

What are the sizes of hard suction hose and who carries them?

A 
The hard suction hose sizes used by the CFD are:
65mm
77mm
100mm
125mm

Hard suction hoses are carried on all CFD tenders.

36
Q

The CFD uses a three piece coupling for its 44mm and 65mm couplings.

What do they consist of?

A

A male threaded shank
A female threaded swivel
A non threaded shank to which the female is attached.

37
Q

Inspection requirements…

Hoses will be visually inspected for…

A 
Vandalism
Free from debris
Mildew or rot
Chemical damage
Burns or cuts
Excessive abrasion
Vermin damage
An internal inspection at each of the couplings will check for delamination of the hose.
38
Q

Inspection requirements…

Couplings will be visually inspected for…

A

Damaged threads
Corrosion
Slippage of the hose
Out of round
Connections not rotating freely
Missing lugs
Loose external collar
Internal gasket for presence, tight fit, lack of deterioration and not protruding into the waterway.
Any locking device not operating properly
Other defects that could impair operation

39
Q

What is considered a transverse line?

A

A transverse is a minimum of 4 x 15m lengths of 44mm and 65mm hose, pre-connected, with a nozzle.

The flat load is used on transverse.

Engine 25 is the only engine on CFD that has 6 pre-connected transverse lines. (This is in the CFD manual)

40
Q

What is the name of the load for the trash/bumper line?

A

Scorpion load.

41
Q

What is the name of the load for the 125mm supply hose for engines after 2016 and CFD quints?

A

The coupling forward column load is used on CFD engines manufactured after 2016 and all CFD quints. This load saves space and allows for the hose to lay flat. There are slight variations between engines and quints depending on the length and width of the hose bed.

42
Q

What is the rated pressure of low pressure high volume (yellow 125mm) hoseline?

A

Rated to 1400kpa

200psi

43
Q

What is the rated pressure of high pressure high volume (red or green 125mm) hoseline?

A

2100kpa

300psi

44
Q

CFD hoselines all have a rated pressure. What is the pressure of the attack lines on CFD engines?

A

The 44mm and 65mm are 2800kpa (400psi).

The odd one is the 77mm with the unpainted coupling found on two stage engines and quints. That one is 4000kpa (600psi)

45
Q

On CFD engines, the transvere lines can be different colors, yellow and orange. Where is the orange transverse bed positioned?

A

In the middle of the two yellow lines. Between the 44mm and the 65mm.

46
Q

What is the pressure rating for the blue hose on CFD engines? With and without the RED fitting…

A

The 77mm with the unpainted coupling found on two stage engines and quints is 4000kpa (600psi).

The blue hose with the red fitting is less is 2800kpa (400psi).

47
Q

Care and Maintenance… CFD Manual

How often should should apparatus hose loads be changed?

A

Apparatus hose loads should be changed every THREE MONTHS. Hose should be exchanged with station compliment. This prevents damage and permanent set to the rubber lining and prevents mold, mildew, and rot. Hose load changes should be recorded in the station log books.

48
Q

What is the location of hard suction hose on CFD apparatus?

A

Hard suction hose is located on all CFD tenders.

49
Q

How is hard suction hose cleaned?

A

Hard suction hose is cleaned with a bristle brush and soapy water. Rinse with clean water.

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