Water Supply Flashcards

1
Q

A Pitot gauge is used to determine ___ pressure.

A

Flow Pressure

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2
Q

The pipes that deliver water from the treatment facility for distribution are ___.

A

Mains

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3
Q

The pipes that deliver water to users and hydrants on individual streets are ___.

A

Distributors

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4
Q

Where are dry-barrel hydrants typically used?

A

Cold Climates

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5
Q

What is the term for a large discharge opening on a fire hydrant?

A

Steamer

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6
Q

How can you determine that a dry-barrel hydrant is still draining?

A

Place a hand over an outlet and feel for suction.

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7
Q

Pressure in a water distribution system during average consumption is ___ pressure.

A

Normal Operating

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8
Q

A dry hydrant provides access to a ____.

A

Static water source.

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9
Q

In a well-designed water distribution system, which type of pattern do water mains follow?

A

Grid

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10
Q

The flow or quantity of water moving is measured in ___.

A

Gallons per Minute (liters per minute).

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11
Q

What should be done to avoid water hammer?

A

Open and close all valves slowly.

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12
Q

What is the decrease in pressure that occurs as water moves through a hose?

A

Friction Loss

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13
Q

What is a hard suction hose commonly used for?

A

Drafting from a static water source

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14
Q

Which of the following is one of the 3 factors that determine friction loss?
A) Ambient Temperature
B) Hose Diameter
C) Atmospheric Pressure
D) Water Source

A

B) Hose Diameter

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15
Q

In a jacketed fire hose, which function does the outer jacket serve?

A

It adds strength that allows the hose to withstand water pressure

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16
Q

Which type of hose coupling does not have male or female ends?

A

Storz

17
Q

An engine lays hose from a water source to the fire scene in a ___ lay.

A

Forward

18
Q

After connecting the supply line to the hydrant, how should the firefighter open the hydrant?

A

Upon receiving a signal from the driver/operator, open the hydrant fully.

19
Q

What us a function of a hose liner?

A

Reduce friction loss

20
Q

Couplings are tightened and loosened with a ___wrench.

A

Spanner

21
Q

What is the correct tool to tighten a hard suction hose connection?

A

Rubber Mallet

22
Q

Which device splits one hose stream into two hose streams?

A

Wye

23
Q

Which hose appliance combines two hose lines into one?

A

Siamese

24
Q

When charging a supply line at a hydrant, the fire fighter should___.

A

Avoid standing between the hose line and the hydrant.

25
Q

In a ___ lay, the hose is laid out from the fire to the hydrant.

A

Reverse

26
Q

A soft suction hose is used to connect a pumper to a ___.

A

Hydrant

27
Q

What should be used to clean fire hoses?

A

Mild Detergent

28
Q

Which type of adaptor is used to connect two female couplings to each other?

A

Double Male

29
Q

Portable water tanks should be positioned in a location that allows easy access from:

A

Multiple Directions

30
Q

___ is defined as a water source such as a pond, river, stream or other body of water that is not under pressure.

A

Static Water Source

31
Q

The two major hydrant types are:

A

wet barrel and dry barrel

32
Q

To properly operate a fire hose nozzle valve, it should be:

A

opened and closed slowly

33
Q

What is the term for locations from which an engine can draft water out of a static water source

A

Draft/Fill Sites