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Fire Fighter I > Fire Hose > Flashcards

Fire Hose Flashcards

1
Q

What are the two main types of fire hose?

A
  • Supply line -transports water from the hydrant or static water source to the pumping apparatus; larger than 3 inches in diameter
  • Attack line - transports water from the pumping apparatus to the nozzle when it’s used to suppress fire; 3 inches or less in diameter
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2
Q

How is fire hose identified / referenced?

A

It’s refered to by the size of it’s diameter, which is measured from the inside of the hose. For example, the inch 3/4 line.

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3
Q

How long are lengths of fire hose?

A

Fire hose is manufactured in sections of fifty and one hundred feet length. In the US, fifty foot sections are most common.

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4
Q

What are the two kinds of intake hose?

A

Soft sleeve and hard suction hose

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5
Q

True or false: all fire departments in North America are required to have hose that follows the NFPA 1961.

A

False. While it is strongly recommended, some fire departments do not have NFPA certified equipment, which requires other fire departments to carry adaptors.

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6
Q

What is a higbee cut and a higbee indicator?

A

A higbee cut prevents cross threading when the threads are connected. The higbee indicator indicates where the higbee cut begins.

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7
Q

What is a spanner wrench?

A

A special wrench that fits against the lugs on the male coupling that can be used to connect them to female couplings. May also be called spanners.

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8
Q

What are the three kinds of lugs that can be found on fire hose couplings?

A

Rocker, recessed, and pin

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9
Q

Where are recessed lugs commonly found?

A

These are commonly found on booster fire hose because recessed lugs prevent abraisions when it’s rolled up. Note that you need a special pin spanner wrench to uncouple recessed lugs.

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10
Q

What are the two kinds of non-threaded couplings?

A

Quarter turn and storz

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11
Q

True or false: quarter turn nonthreaded couplings are primarily used for large hoses.

A

False. The quarter turn coupling is mostly used in wildfire operations. The storz nonthreaded coupling is primarily used for large hoses.

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12
Q

What are the advantages of nonthreaded couplings?

A
  • Connect quickly
  • No risk of cross threading
  • Hose can be connected from either side, so loading the hose for proper orientation is unnecessary
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13
Q

What are some disadvantages of nonthreaded couplings?

A
  • Hose can become uncoupled more easily than threaded hose couplings
  • They need adapters to connect to fire hydrants, which takes longer
  • Dirt and other debris can prevent a tight seal
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14
Q

How often does fire hose need to be inspected?

A

90 days before being put in service for the first time and annually after that.

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15
Q

True or false: woven-jacket style hose requires more thorough cleaning than rubber lined hose because dirt and other debris can get into the fabric.

A

True

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16
Q

True or false: only woven-jacket fire hose needs to be dried before being reloaded on the apparatus.

A

True. The performance and quality of the rubber lined hose is not affected by water, but woven-jacket hose can rot if left wet.

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17
Q

Should the female or male coupling be inside the rolled hose?

A

The male to protect the threads.

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18
Q

How long can hose be stored on the apparatus without being used before it requires an inspection?

A

6 months

19
Q

True of false: if a hose becomes frozen then it needs to be tested.

A

True because frost can affect the strength of the hose by creating unseen weaknesses

20
Q

What are some ways that firefighters can lay hose to avoid contact with contaminants?

A

Lay hose on the sidewalk, median, or 4 feet away from gutters and low areas where contaminants or water runoff mixed with contaminants is likely to be.

21
Q

What are the three methods of rolling hose?

A
  • Straight roll
  • Donut roll
  • Twin donut roll
22
Q

What is a straight roll and what is it used for?

A

A straight roll is a roll with the male coupling rolled into the center in a single line. It’s made by extending the entire hoseline on the ground and slowly it into a roll from the end with the male coupling. Note that this should be done by walking with the hose as opposed to dragging the hose towards you, since this can damage the woven-jacket.

A straight role is used for transporting damaged hose, storing hose in a rack, carrying spare hose in an apparatus, and making hose loading easier.

23
Q

What is a donut roll and what is it used for?

A

A donut roll is a roll that’s made by laying the hoseline flat and then folding it over itself with the couplings about 5 feet apart. The male coupling should be on top, several feet from the female, so that when it’s rolled up from the opposite end, the male coupling is inside the donut roll for protection.

A donut roll is most often used when hose needs to be deployed directly from a roll, but chosing between straight and donut roll is usually a matter of department preference.

24
Q

What is a twin donut roll and what is it used for?

A

Two donut rolls are made side by side with the same length hose and secured with webbing; it is used in highrises and standpipe operations.

25
Q

What are the minimum fire hose loads on an apparatus according to the NFPA 1901?

A

800 feet of 2.5 inch or larger

400 feet of either 1.5, 1.75, or 2 inch fire hose.

26
Q

What are the three most common loads for supply hoselines?

A
  • Flat
  • Accordion
  • Horseshoe
27
Q

What are hose finishes?

A

A section of hose arranged in such a way that they are easily accessible and easily connected to a hydrant or as an attack line.

28
Q

What are the two catagories of finishes?

A
  1. Straight finish - used for advancing hoselines towards hydrants
  2. Reverse finishes - used for reverse hose lays and to provide an adequate amount of hose for initial attack
29
Q

What is a combination hose load?

A

Half of the hose is loaded so that the male ends are showing, which allows them to lay hose from the water source to the fire, and the other half is loaded with the female ends showing for a reverse hose lay.

30
Q

What is the primary advantage of a horseshoe load?

A

There are fewer bends in the hose and therefore it prevents breaking the lining.

31
Q

What are some disadvantages of the horseshoe load?

A

It is more difficult to get the required amount of hose from the load because lots comes out at once. It is also more difficult to shoulder carry.

32
Q

What are preconnects?

A

Preconnected hoselines that are used for fire attack.

33
Q

What are couplings?

A

Fire hose couplings connect lengths of hose together to form a continuous hoseline and to connect fire hoses to nozzles, hydrants, pumpers, and FDCs. To ensure compatibility with all brands of fire hose, NFPA 1963 specifies fire hose coupling design and construction. Note that not all jurisdictions use national standard threads so adapters may be needed for mutual aid.

34
Q

What are the components of a threaded coupling?

A
35
Q

Which threaded coupling has rocker lugs?

A

The male coupling. These provide gripping points for connecting and disconnecting hose couplings. Note that the shank (the portion of the coupling that serves as a point of attachment to the hose) on female couplings, does not have lugs.

36
Q

How should you indicate that fire hose needs to be taken out of service?

A

There are 3 common methods used, each of which is a variation of straight roll:

37
Q

What are the 3 common loads used for preconnected attack lines?

A
  • Flat pack
  • Triple pack
  • Minuteman
38
Q

What is the appropriate way to flat pack hoseline?

A 
https://www.youtube.com/watch?v=sk0Zn4J7jds
39
Q

What is the appropriate way to triple pack hoseline?

A 
https://www.youtube.com/watch?v=pcnjz4Kc5cI
40
Q

What is the appropriate way to minuteman load hoseline?

A 
https://www.youtube.com/watch?v=efq6r1Q6gSM
41
Q

What are some general guidelines for loading fire hose?

A
  • Check gaskets and swivels before connecting couplings
  • Keep the flat sides of the hose in the same plane when connecting two sections
  • Connect couplings hand tight
  • Make a short fold or reverse bend, called a Dutchman, in the hose when loading if a coupling is too close to the edge of the hose bed.
  • Don’t pack hose too tightly; it should be loose enough to fit a gloved hand.
  • Load large diameter hose with couplings towards the front of the bed since it saves space and allows the hose to lie flat.
42
Q

What are the two types of suction hose?

A

Suction hose, also called intake hose, is another name for supply line, as it’s used to connect the pumper to a hydrant or other water source. There are two types:
* Soft sleeve
* Hard suction - this is commonly used for drafting water from static water supplies such as ponds or lakes

43
Q

What is a higbee cut and a higbee indicator?

A

A higbee cut is a flattened angle at the end of the threads on a threading coupling that helps prevents cross-threading when connecting. The higbee indicator is a marking on the coupling lug that identifies the higbee cut.

Fire Fighter I (15 decks)

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