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Hose book > Ch4 Hose Appliances and Hose Tools > Flashcards

Ch4 Hose Appliances and Hose Tools Flashcards

1
Q

What are means of directing and controlling the water flow into the hose?

A

Valves

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2
Q

What are the six types of valves?

A

gate, ball, butterfly, floating, piston, and clapper

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3
Q

What are the two types of gate valves?

A

rising stem and nonrising stem

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4
Q

Blank valves are relatively heavy and bulky but are well suited for use on a hydrant or pump discharge orifice

A

Gate

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5
Q

The blank valve is the most commonly used valve in the fire service

A

Ball

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6
Q

The blank valve has a disk that pivots within the waterway

A

Butterfly

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7
Q

What is the butterfly valve most commonly used on?

A

4.5 inch and larger intakes and in private water supply systems

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8
Q

A blank valve is a new valve design that allows the connection of a water supply to the pumping apparatus while the pump is operating and under pressure

A

floating

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9
Q

A blank valve is a hinged valved that allows water to flow in one direction only

A

clapper

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10
Q

A blank valve has an internal piston that moves withing a cylinder to control the flow of water through the valve

A

piston

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11
Q

What does a four-way hydrant valve allow the first arriving attack pumper to do?

A

connect the valve ot the hydrant, connect a supply line, proceed to the emergency scene, and charge the supply line from the hydrant

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12
Q

An automatic hydrant valve eliminates the need for?

A

to leave a person at the hydrant when making the hydrant connection

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13
Q

A blank automatic hydrant valve automatically opens after a preset period of time

A

mechanically delayed

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14
Q

When is a manifold valve particularly useful?

A

in situations where pumping apparatus have limited access to buildings

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15
Q

what is a wye appliance

A

a device that comebines one supply line into two attack lines, consists of a female intake with two male fittings on the discharge side

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16
Q

what does a siamese device consist of?

A

a siamese has two female couplings on the intake side and one male fitting on the discharge side

17
Q

when is a siamse deice used?

A

it is used when friction loss in a supply hose needs to be reduced

18
Q

Placing blank along a hose length enables a pumping apparatus to connect to the valve ato boost pressure in the hoseline?

A

inline relay valve

19
Q

An external intake relief valve has a spring-loaded internal component that diverts any sudden pressure surge away from the?

A

fire pump

20
Q

Defn of fittings?

A

devices that facilitate the connectoin of hoselines of different sizes to provide a continuous, uninterupted supply of water from a source to the nozzle

21
Q

What is an adapter?

A

is a fitting for connecting hose coup;ings with dissimilar threads or coupling types but with the same inside diameters

22
Q

What is an elbow?

A

a hose fitting that provides support for an intake or dishcarge hose at the pumping apparatus

23
Q

what is the common size of a hydrant wrench?

A

16-18 in

24
Q

what are spanners primarily used for?

A

tighten and loosen hose couplings

25
Q

what is one of the most useful tools to aid in handling a charged hoseline?

A

hose strap

26
Q

A blank consists of a metal frame with two or more rollers.

A

hose roller

27
Q

What is a hose jacket?

A

a hose toold composed of a two-piece metal cylinder with heavy rubber gaskets located on each end.

28
Q

What are the three types of hose clamps?

A

screw-down, pressdown, and hydraulic press

29
Q

What two types of hose clamps are used to clamp LDH?

A

hydraulic-press and screw down

30
Q

What is the proper placing of a hose clamp?

A

20 ft behind the apparatus within 5 feet of the coupling on the incoming water side

31
Q

what is a hose wringer?

A

a device used to remove the excess water and air from large diameter hose before it is reloaded

Hose book (5 decks)

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