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LLPSD - FF 1 Chapter 6 Questions and Answers 100% Solved
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LLPSD - FF 1 Chapter 6
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LLPSD - FF 1 Chapter 6What is the term for a rapid chemical process in which the combination of a substance
with oxygen produces heat and light?
a. Convection
b. Pyrolysis
c. Oxidation
d. Combustion - answerd. Combustion
Which situation is indicated when you open a door and the smoke exits through the top
half of the door and clean air enters through the bottom half?
a. Nonsurvivable conditions for occupants
b. An under-ventilated fire
c. Disturbance of thermal layering
d. The fire is on the same level as the door - answerd. The fire is on the same level as
the door
What is the term for temperature in a room reaching the point where all the combustible
contents of the room ignite?
a. Flashover
b. Autoignition
c. Rollover
d. Backdraft - answera. Flashover
When water is converted to steam, it occupies _____ space.
a. somewhat less
b. somewhat more
c. much more
d. about the same - answerc. much more
What is the process called when a material decomposes upon being exposed to heat in
the absence of oxygen?
a. Electrolysis
b. Oxidation
c. Vaporization
d. Pyrolysis - answerd. Pyrolysis
What is the term for the spontaneous ignition of hot gases at the upper level of a room?
a. Flashover
b. Flameover
c. Ghosting
d. Mushromming - answerb. Flameover
, The movement of heated gases in a fire is an example of which form of heat transfer?
a. Convection
b. Radiation
c. Conduction
d. Circulation - answera. Convection
Which geometric figure is used to represent the four elements required for a self-
sustaining fire?
a. Square
b. Pyramid
c. Tetrahedron
d. Polygon - answerc. Tehtrahedron
What is the term for the process in which oxygen combines chemically with another
substance to create a new compound?
a. Pyrolysis
b. Oxidation
c. Combustion
d. Electrolysis - answerb. Oxidation
A Class C fire involves ______.
a. a flammable liquid or gas
b. energized electrical equipment
c. a combustible metal
d. cooking material - answerb. energized electrical equipment
What is the percentage of oxygen normally found in air?
a. 17.7 %
b. 21 %
c. 18 %
d. 19.5 % - answerb. 21 %
Which state must a fuel be in for combustion to take place?
a. Solid, liquid, or vapor
b. Vapor
c. Solid
d. Liquid - answerb. Vapor
Turbulent smoke is an indication of impending _______.
a. mushromming
b. flashover
c. self-ventilation
d. stratification - answerb. flashover
Matter exists in ____ states.
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