1. The boiling point of water is -

100 degrees F
145 degrees F
200 degrees F
212 degrees F

2. At its boiling point, water will expand approximately __ times its normal volume.

500
1000
1200
1700

3. The primary way water extinguishes fire is by -

Smothering the fire
Cooling the fire
Chemically inhibiting the fire
Removing the fuel from the fire

4. Which of the following statements regarding the physical characteristics of water are NOT true?

Water has a greater heat-absorbing capacity than other common extinguishing agents
A relatively large amount of heat is required to change water into steam
The greater the surface area of water presented to the fire, the more rapidly the heat will be absorbed
The lesser the surface area of the water exposed, the more rapidly heat is absorbed

5. What may be the consequences, if ventilation is not provided ahead of hose teams involved in a direct or combination fire attack?

The water will have little or no cooling effect upon the fire
The expansion capability of the water will be greatly reduced
There is a high possibility that steam and even fire will roll back over and around the hose team
Water will change to steam at a much slower rate

6. All of the following factors will influence the way a stream of water or other extinguishing agents pass through space except -

Barometric pressure
Gravity
Wind
Friction with the air

7. The condition in which a fire stream leaves a nozzle is influenced by which of the following factors?

(1) Operating Pressure (2) Nozzle Manufacturer (3) Nozzle Design (4) Nozzle Adjustment (5) Condition of the nozzle orifice

1, 2, 3, 4
1, 2, 4, 5
1, 3, 4, 5
1, 2, 3, 4, 5

8. __ is defined as that part of the total pressure that is lost while forcing water through a pipe, fitting, fire hose, and adapters.

Friction pressure
Friction loss
Vapor pressure
Velocity pressure

9. Parallel or siamese hoselines are used in order to -

Reduce flow and reduce friction
Increase flow and increase friction
Increase flow and reduce friction
Reduce flow and increase friction

10. In order to reduce pressure loss due to friction, firefighters should do all but which of the following?

Use adapters only when necessary
Eliminate sharp bends
Use short lines as much as possible
Keep nozzles and valves only partially open when possible