TB 151 - Progressive Hose Lay and the Smokey Pack Lightweight Hose System Flashcards

1
Q

There are two methods for deploying hose,

A

Simple and Progressive.

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2
Q

relies on a continuous line being advanced around the fire from the Engine to the nozzle with no junctions in between.

A

The Simple Hose Lay

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3
Q

The Simple Hose Lay has the advantage of minimal friction loss due to

A

minimal fittings

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4
Q

Simple hose lays uses what length of double jacketed hose

A

1” or 1 1/2”

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5
Q

is a hose lay that starts from the supply source and progresses along the perimeter of the fire.

A

Progressive Hose Lay

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6
Q

Progressive hose lay uses a continuous application of water while extending the lay and allows for a series of lateral junctions at ______ intervals

A

100’ intervals

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7
Q

Progressive hose lay

uses a continuous application of water while extending the lay and allows for a series of lateral junctions at

A

Trunk line

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8
Q

Progressive hose lay.

The trunk line will be a minimum size of

A

1 1/2”

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9
Q

Progressive Hose lay:

Each junction will have a 1” line with a 1” (_____ _______ _______) nozzle attached and be connected to a 1½” ______ _____ through a __” to _” reducer, referred to as a lateral.

A

10/40 dual gallon age nozzle

Gated wye

1 1/2 to 1”

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10
Q

The Progressive Hose Lay has several advantages over the Simple Hose Lay. First, it provides for a _______ ______ on a fire without being forced to shut down the hose to progress up the flanks.

A

Continuous attack

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11
Q

The Progressive Hose Lay has several advantages over the Simple Hose Lay.

Also, it is safer for the _______ ________ ____method as it provides a larger safety margin, having charged 1” lateral lines left in place for the event of a flare up along the line.

A

Direct attack method

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12
Q

Only the_______ attack line is advanced charged, increasing deployment speed and decreasing work load

A

1””

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13
Q

The disadvantage of the Progressive Hose Lay is the higher friction loss due to the increased number of fittings (approximately______– ____psi each).

A

5to 15

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14
Q

It is the Policy of the LAFD that when using a Progressive Hose Lay to provide for perimeter control, companies shall utilize a minimum of __” hose line for the trunk line and a __” hose line for the attack and laterals lines.

A

1 1/2”

1”

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15
Q

Each drop of a Progressive Hose Lay shall consist of the following:

_____’ 1½” Single Jacket Hose (Minimum size for the trunk line)
•________ Single Jacket Hose (Attack and lateral line)
•______Gated Wye with
____ 1½” to 1” Reducer
•1” Nozzle (10/40 Dual Gallonage)
•____ Rubber Bands or ladder straps to secure gates.

A

100’

1”

1 1/2
One

2

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16
Q

A Company given the task of establishing a progressive hose lay is expected to, at a minimum, be able to put in ______ ____

A

3 drops

17
Q

is a pre-assembled pack of single jacket lightweight hose, which allows rapid deployment of packs and extension of line with an uninterrupted supply of water.

A

Smokey Pack Lightweight Hose System

18
Q

Smokey Pack Lightweight Hose System. This hose is polyester single jacketed construction with a ______lining, cut to __’ lengths with attached couplings of National Standard threads on both 1” and 1½” hose.

A

Polyurethane

100

19
Q

LAFD hose is identified as _____ in color

A

Orange

20
Q

A company compliment will consist of _____complete Smokey Packs and one _________. Each Pack weighs approximately ___ lbs.

A

4

Starter roll

26 lbs

21
Q

In addition to the four complete Smokey Packs and one Starter Kit, each Company will also receive one compliment of hose consisting of ___’ of 1” lightweight hose and ___’ of 1½” lightweight hose.

A

400

400

22
Q

SMOKEY PACK ASSEMBLY

  1. Lie out 100’ section of 1” hose and fold in half, with the male on top, placed ___behind female coupling.
A

24”

23
Q

SMOKEY PACK ASSEMBLY

  1. Roll tightly, 100’ section of 1½” hose with _____coupling forming the core.
A

Female

24
Q

SMOKEY PACK ASSEMBLY

Continue to feed the hose into the backpack, tightly flaking it in a zigzag fashion. While loading, secure the hose every __’-__’ until the 1” line is completely loaded.

A

8-10

25
Q

Forestry adapters, 1”, National Standard Thread (NST) to National Pipe Thread (NPT) and NPT to NST shall be painted ____ for identification

A

White

26
Q

The service test pressure for this hose is

A

300 psi

27
Q

It is recommended hose testing to be performed on

A

grass or light fuel bed