CHAPTER 15-16-20 TEST

Question 1

The primary way water extinguishes fire is by:

Answer 1

Absorbing heat

Question 2

As water is vaporized into steam, it expands approximately _____ it’s original volume.

Answer 2

1700 times

Question 3

A fire stream is a stream of water or extinguishing agent after it:

Answer 3

Leaves the fire hose nozzle until it reaches the desired target

Question 4

What factor may affect a fire stream?

Answer 4

Wind direction and velocity

Question 5

To extinguish by cooling, the fire stream must:

Answer 5

Absorb over 50 percent of heat generated by the fire

Question 6

Which fire stream pattern is produced by a fixed orifice, smooth bore nozzle?

Answer 6

Solid stream

Question 7

Characteristics of water that make it valuable for fire extinguishment include:

Answer 7

A greater heat absorbing capacity than other agents

Question 8

Which nozzle produces a compact stream with little shower or spray?

Answer 8

Smooth bore nozzle

Question 9

How may gravity, friction of air, and wind act on a solid fire stream?

Answer 9

They may decrease the reach of the stream

Question 10

Which fire stream pattern is usually produced by a fog nozzle?

Answer 10

Straight stream

Question 11

Hose lines are more likely to link with a smooth bore nozzle because the nozzle uses less pressure. True or false?

Answer 11

True

Question 12

When used with a smooth bore nozzle, a nozzle control valve that causes turbulence when partially open which can affect the quality of a fire stream is the:

Answer 12

Ball valve

Question 13

The purpose of a fire alarm system is to:

Answer 13

Notify building occupants of an emergency condition

Question 14

Which fire alarm component sends a signal to the fire alarm control panel?

Answer 14

Initiating device

Question 15

What is a manually activated alarm initiating device?

Answer 15

Pull station

Question 16

A fragile bulb heat detector is activated when:

Answer 16

A small glass vial breaks when heated, allowing electrical contacts to complete a circuit

Question 17

What type of hose transports water or other agents, at increased pressure from a pump equipped apparatus to a nozzle?

Answer 17

Attack hose

Question 18

Which types of lugs are found on modern couplings?

Answer 18

Rocker

Question 19

Which type of nonthreaded couplings have two hooklike lugs on each coupling?

Answer 19

Quarter turn

Question 20

How can mechanical damage to hoselines be prevented?

Answer 20

Provide traffic control to prevent vehicles from driving over hose

Question 21

What is an example of chemical damage to hose?

Answer 21

Exposure to motor oil and gasoline

Question 22

How should fire hose couplings be cared for?

Answer 22

Inspect gaskets and replace if cracked or creased

Question 23

Where might booster hose reels be mounted on the apparatus?

Answer 23

In rear compartments

Question 24

What is an advantage of the forward lay?

Answer 24

Pumper can remain at the incident scene so hose and equipment are readily available

Question 25

Which hose lay is used when the pumper must first go to the fire location before laying the supply line

Answer 25

Reverse lay

Question 26

Where should the nozzle operator and members of the hose team be located?

Answer 26

On the same side of the hose line

Question 27

When operating small hoselines with two firefighters, the backup firefighter takes a position_____.

Answer 27

On the same side of the hose about 3ft

Question 28

Which size fire stream flows 40-350gpm

Answer 28

Handline stream