Fire Behavior

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1. What state must a fuel be in for combustion to take place?
A. Solid or vapor only
B. Solid only
C. Solid, liquid, or vapor
D. Vapor only
D. Vapor only
(this multiple choice question has been scrambled)
2. As electricity flows through a wire, what relationship, if any, is there between the resistance in
the wire and any heat produced by the current?
A. There is no relationship between these two quantities.
B. The further the resistance is from the optimum of 1.0, in either direction, the greater the heat produced.
C. The greater the resistance, the more heat is
produced.
D. The greater the resistance, the less heat is
produced.
C. The greater the resistance, the more heat is produced.
(this multiple choice question has been scrambled)
3. What is the term for the lowest temperature at which a liquid produces a flammable vapor?
A. Flash point
B. Lower flammable limit
C. Upper flammable limit
D. Fire point
A. Flash point
(this multiple choice question has been scrambled)
4. What is the vapor
density of air?
A. 0.0
B. 21.7
C. 1.0
D. 14.7
C. 1.0
(this multiple choice question has been scrambled)
5. How are flammability limits and explosive limits related?
A. Flammability limits are used to calculate
explosive limits.
B. Explosive limits are used to calculate
flammability limits.
C. The two terms are neither mathematically nor
conceptually related.
D. They are interchangeable terms meaning the
same thing.
D. They are interchangeable terms meaning thesame thing.
6. What is the method of choice for extinguishing most Class B fires?
A. Excluding the oxygen
B. Cooling the fuel
C. Interrupting the
chemical chain reaction
D. Polymerizing the fuel
A. Excluding the oxygen
(this multiple choice question has been scrambled)
7. What is another term for fire point?
A. Ignition point
B. Flame point
C. Thermal point
D. Flash point
B. Flame point
(this multiple choice question has been scrambled)
8. As a solid fuel heats up, it decomposes and releases individual molecules into the atmosphere. What is this process called?
A. Pyrolysis
B. Hydrolysis
C. Crystalization
D. Evaporation
A. Pyrolysis
(this multiple choice question has been scrambled)
9. What is the term for a chemical reaction that produces heat?
A. Thermodynamic
B. Thermostatic
C. Isothermic
D. Exothermic
D. Exothermic
(this multiple choice question has been scrambled)
10. Down to what temperature, can gasoline still give off flammable vapors?
A. 32o F
B. –15o F
C. -45o F
D. 0o F
C. -45o F
(this multiple choice question has been scrambled)
11. At this temperature, a fuel-air mixture will ignite spontaneously.
A. The ignition temperature
B. The flame point
C. The flash point
D. The temperature of pyrolysis
A. The ignition temperature
(this multiple choice question has been scrambled)
12. What is an endothermic reaction?
A. One that expands faster than the speed of sound
B. One that occurs without oxygen
C. One that evolves CO
D. One that absorbs heat
D. One that absorbs heat
(this multiple choice question has been scrambled)
13. What creates mechanical energy?
A. Motors
B. Motion
C. Engines
D. Friction
D. Friction
(this multiple choice question has been scrambled)
14. Which process occurs when oxygen combines chemically with another substance to create a new
compound?
A. Pyrolysis
B. Conflagration
C. Oxidation
D. Combustion
C. Oxidation
(this multiple choice question has been scrambled)
15. What is the term for a rapid chemical process in which the combination of a substance with oxygen
produces heat and light?
A. Conflagration
B. Oxidation
C. Combustion
D. Pyrolysis
C. Combustion
(this multiple choice question has been scrambled)
16. What is the term for the decomposition of a material brought about by heat in the absence of oxygen?
A. Pyrolysis
B. Conflagration
C. Oxidation
D. Combustion
A. Pyrolysis
(this multiple choice question has been scrambled)
17. What is the term for the lowest temperature at which a liquid produces enough vapor to sustain a continuous fire?
A. Volatility
B. Flame over
C. Flame point
D. Flash point
C. Flame point
(this multiple choice question has been scrambled)
18. What term refers to the weight of a gas compared to air?
A. Specific gravity
B. Specific density
C. Vapor gravity
D. Vapor density
D. Vapor density
(this multiple choice question has been scrambled)
19. What is the term for high-volume, high-velocity, turbulent, ultra-dense black smoke?
A. Black fire
B. Turbulent fire
C. Laminar fire
D. Endothermic fire
A. Black fire
(this multiple choice question has been scrambled)
20. When you open a door and the smoke exits through the top half of the door and clean air enters
through the bottom half, the fire is probably on what level?
A. Every level
B. Above the level of the door
C. Same level as the door
D. Below the level of the door
C. Same level as the door
21. You open a door and the smoke rises and the opening clears out; fresh air is being pulled into the
building. The fire is probably on what level?
A. Every level
B. Above the level of the door
C. Same level as the door
D. Below the level of the door
B. Above the level of the door
22. When you open a door and the smoke thins, but the smoke still fills the door, the fire is probably on what level?
A. Every level
B. Above the level of the door
C. Same level as the door
D. Below the level of the door
D. Below the level of the door
 Author: readyreg29 ID: 92885 Card Set: Fire Behavior Updated: 2011-07-04 03:46:49 Tags: Fire Behavior Folders: Description: Fire Behavior Show Answers: