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Hose book > ch1 Fire hose and couplings > Flashcards

ch1 Fire hose and couplings Flashcards

1
Q

Municipal fire departments usually limit the diameters of their fire hose to blank inches

A

6

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2
Q

Fire flow

A

the quantity of water available for fire-fighting operations in a given area

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3
Q

In blank IAFE passed its first resolution to set standards for fire hose screw threads

A

1873

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4
Q

as early as blank nfpa began developing thread specifications for fire hose couplings

A

1898

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5
Q

for 2.5 inch couplings the principle dimensions of blank threads per inch and blank inches outside diameter

A

7.5 tpi, 3 1/16th in.

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6
Q

prompted by the 1904 baltimore fire an nfpa committee in 1905 set out to?

A

standardize not only couplings, but also fire hose, nozzles, and accessories

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7
Q

the standard for fire hose coupling screw threads for sized 2.5 in and larger was approved by ASA in?

A

May 1925

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8
Q

in blank NFPA adopted standards for threads on 4,5, and 6 in supply hose

A

1955

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9
Q

NFPA adopted dimensions for gaskets from 3/4 to 6 inches for standard fire hose couplings as well as provided data on the required gasket seat dimensions in?

A

1956

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10
Q

Attack hose

A

hose that is used by trained firefighters members to combat fires beyond the incipient fire stage

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11
Q

supply hose

A

hose that is designed for the purpose of moving water between a pressurized water source and a pump that is supplying attack hoselines

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12
Q

suction hose

A

intake hose that connects pumping apparatus or portable pump to a water source

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13
Q

forestry fire hose

A

small-sized lightweight hose that is designed to meet the specialized requirements for fighting wildland fires

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14
Q

occupant use fire hose

A

hose used by a building’s occupants to fight incipient-stage fires before the arrival of trained firefighters

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15
Q

booster hose

A

noncolllapsible, preconncted hose having an elastomeric or thermoplastic tube, a braided spiraled reinforcement, and an outer protective cover; used for small, incipient stage exterior fires; often carried on reels

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16
Q

small diameter hose

A

fire hose that is between .5 and 3 inches in diameter and is most often used as attack hose

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17
Q

large diamter hose

A

fire hose that is 3.5 inches or larger in diameter

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18
Q

design service test pressure

A

pressure equal to approximately 110 percent of the operating pressure; test conducted by the manufacturer

19
Q

Burst test

A

destructive test on a 3-foot length of hose at 3 times its labeled service test pressure to determine its maximum strength

20
Q

test conducted by the manufacturer to ensure fire hose meets standards; measures movement of leaking couplings in a suppply connection when pressurized to a pressure two times the service test pressure

A

Proof Test

21
Q

the percent a length of hose increases in length from an initial measurement with the hose pressurized at 10 psi

A

elongation

22
Q

structural support in the form of woven,braided, or spiraled yarn within a rubber-covered hose

A

reinforcement

23
Q

Distance a hose elevates above the test table while under pressure

A

rise

24
Q

yarns running lengthwise down a hose

A

warp

25
Q

maximum distance any portion of a fixed length of hose deviates from a straight line drawn from the center of the fitting at one end to the center of the fitting a tthe other end with the hose pressurized to an established test pressure or its proof test pressure

A

warp

26
Q

yarns running circumfrentially around a hose; measure in picks per inch

A

weft

27
Q

Attack hose is differentiated from other catagories by?

A

its minimum service test pressure of 300 psi

28
Q

All new fire hose must successfully pass several performance tests to ensure that it is manufactured in compliance with the hose standard?

A

NFPA 1961 standard on fire hose

29
Q

supply hose that connects a pumping apparatus or portable pump to either a pressurized or nonpressurized source

A

Intake hose

30
Q

Suction supply hose requires 15 feet of large soft sleeve hose or 20 feet of hard suction hose on a pumping apparatus, additionally, 800 feet of hose that is 2.5 in or larger in diameter and 400 feet of 1.5 - 2.5 inch attack hose must be provided on a pumping apparatus

A

nfpa 1901 standard for automotive fire apparatus

31
Q

the minimum design requirement for hose lengths is that it be between bland and blank percent of its stated length at the time of acceptance

A

-2 and +4

32
Q

the outer cover located on a double jacketed hose is often referred to as?

A

wear jacket

33
Q

a process where the rubber is pressed between opposing rollers to produce a flat sheet of material

A

calendaring

34
Q

forms a seamless tube by forcing a heated mass of rubber or thermoplastic through the orifice of an extrusion machine die

A

Extrusion

35
Q

NFPA requires each length of fire hose to be indelibly marked in letters and number at least blank in. high

A

1

36
Q

Supply hose must be marked with words “Supply Only” with letters atleast blank in. high

A

2

37
Q

A blank is a fitting permanently attached to the end of a hose length to connect two sections together or attach it to devices such as nozzles, appliances, hydrants

A

coupling

38
Q

The purchasing organization has blank days to conduct the service test after delivery of new hose

A

90

39
Q

The portion of the coupling that serves as a point of attachment to the hose is called?

A

shank

40
Q

Casting is usually done to make blank couplings

A

occupant use fire hose

41
Q

extruding is the method used to create blank type couplings?

A

aluminum

42
Q

drop forging is used to make blank couplings

A

brass

43
Q

one of the oldest ways to attach a threaded coupling to a fire hose involves the use of a malleable metal band called a?

A

expansion ring

Hose book (5 decks)

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