Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ff 1 > ch 14 test quiz > Flashcards

ch 14 test quiz Flashcards

1
Q

A Pitot gauge is used to calculate:

A

volume of flowing water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

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

A

mains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the minimum recommended pressure for water coming from a fire hydrant?

A

20 psi (138 kPa)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

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

A

distributors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which pipe pattern supplies water to hydrants from more than one direction?

A

Grid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where are dry-barrel hydrants typically located?

A

Cold climates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

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

A

Steamer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

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

A

Place a hand over an outlet and feel for suction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The NFPA recommends color-coding hydrants to indicate:

A

available flow.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Fire hydrants should be inspected at least once every _____ months.

A

12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

An object in motion possesses which kind of energy as a result of that motion?

A

Kinetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

When water is motionless, which kind of energy does it have?

A

Potential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

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

A

normal operating

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the realistic minimum usable residual pressure from a water distribution system for firefighting operations?

A

20 psi (138 kPa)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How close must a fire engine get to a static water source to be able to draft directly from it through hard suction hose?

A

20 ft (6 m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A dry hydrant provides access to a:

A

static water source.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

In general, mobile water supply apparatus (tankers) carry __________ of water.

A

1000 to 3500 gal (3785 to 13,249 L)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the maximum capacity of typical portable water tanks?

A

5000 gal (18,927 L)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How many gallons per minute can a tanker shuttle operation deliver without interruption?

A

Several hundred

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Fire fighters may need to hold on to the ________ while filling a self-expanding portable tank.

A

collar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Portable pumps can deliver a maximum of:

A

500 gpm (1893 lpm).

22
Q

Which is the fastest way for a mobile water supply apparatus to offload water into a portable tank?

A

Use the dump valve

23
Q

Which pressure measurement provides the best indicator of how much more water is available in the system?

A

Residual

24
Q

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

A

Grid

25
Q

Which is a common size of hydrant outlet?

A

2½” (65 mm)

26
Q

Which is the term for the middle-size water main in a municipal water distribution system?

A

Secondary feeder

27
Q

Which is the NFPA color code for a hydrant flowing less than 500 gpm (1893 lpm)?

A

Red

28
Q

Which is the NFPA color code for a hydrant flowing 500 to 999 gpm (1893 to 3781 lpm)?

A

Orange

29
Q

Which is the NFPA color code for a hydrant flowing 1000 to 1499 gpm (3785 to 5674 lpm)?

A

Green

30
Q

Which is the NFPA color code for a hydrant flowing 1500 gpm (5678 lpm) or more?

A

Light blue

31
Q

According to the NFPA, what is the minimum distance between the center of a fire hydrant outlet and the finished grade of the ground around the hydrant?

A

18” (45 cm)

32
Q

The flow or quantity of water moving is usually measured in:

A

gallons per minute (liters per minute).

33
Q

The pressure in a system when no water is flowing is called ________ pressure.

A

static

34
Q

Another term for head pressure is __________ pressure.

A

elevation

35
Q

Which pressure must be measured to calculate the quantity of water flowing through a hydrant discharge?

A

Residual

36
Q

The pressure remaining in a water distribution system when water is flowing is the ________ pressure.

A

residual

37
Q

What should be done to avoid water hammer?

A

Open and close all valves slowly

38
Q

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

A

Friction loss

39
Q

What is hard suction hose most commonly used for?

A

Drafting from a static water source

40
Q

Where is the main valve located in a dry-barrel hydrant?

A

Below the frost line

41
Q

Which is one of the four factors that determine friction loss?

A

Hose diameter

42
Q

The quantity of water that is being moved through a pipe or hose is termed the:

A

flow

43
Q

Which term means the properties of energy, pressure, and water flow as related to fire suppression?

A

Hydraulics

44
Q

Which term means the amount of energy in water?

A

Pressure

45
Q

On a wet-barrel hydrant, where is the valve located?

A

On each outlet

46
Q

Friction loss is __________ proportional to the length of a hose.

A

directly

47
Q

In areas of the western US where aircraft are used to fight wildland fires, which term is used for automotive water supply apparatus?

A

Tender

48
Q

A jet siphon is used for which application?

A

Transferring water between portable tanks

49
Q

Where is a dump valve located?

A

On a mobile water supply apparatus

50
Q

Which type of pressure is created by the difference in height between a water source and the point of discharge?

A

Elevation

ff 1 (61 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions