(Fire Fighter Skills) Chapter 5 Fire Behavior Flashcards
____ - is a rapid chemial process that produces heat and usually light
A. Fire
B. Combustion
C. Ignition
D. Gas
A. Fire
Fire Fighter Skills 159
According to FireFighter Skills what are the three states of matter?
A. Solid, Liquid, Plasma
B. Gas, liquids, Matter
C. Solid, Liquid, Gas
D. Pass, Present, Future
C. Solid, liquid, Gas
According to the Firefighter skills book what is the percentages of gasses in air?
A. 22% Oxygen, 80% Nitrogen, 1% Argon
B. < 1% carbon dioxide, 1 % Argon, 81% Nitrogen
C. 21% Nitrogen, 1% Argon, 80% Oxygen
D. 21% Oxygen, 78% Nitrogen, 1% Argon with trace gasses
D. 21% Oxygen, 78% Nitrogen, 1% Argon with trace gasses
Firefighter skills chapter 5 160
Fuels are materials that store energy. Think of the vast amounts of heat that are relased during a large fire. What are not the type of energy?
A. Chemical
B. Mechanical
C. Dark
D. Light
C. Dark
Energy exist in the following forms: chemical, mechanical, electrical, light, nuclear
Firefighters skills 161
____ temperature is the minium temperature at which a fuel, when heated, will ignite in the presence of air and continue to burn.
A. Fire
B. Auto ignition
C. Ignition
D. Smoke
C. Ignition
Fire Behavior 161
What is the differance between the fire tetrahedron and fire triangle. Pick the best answer
A. Fuel and oxygen are switched
B. Chemical chain reaction is added to Fire Triangle
C. Chemical chain reaction is added to Fire Tetrahedron
D. Fuel is green in the Fire Triangle and yellow in the Fire Tetrahedron
C. Chemical chain reaction is added to the Fire Tetrahedron
Fire Behavior Chapter 5 161
____- Is the process that liberates gaseious fuel vapors due to the heating of solid fuel
A. Chemical reaction
B. Oxidation
C. Combustion
D. Pyrolysis
D. Pyrolysis
Firefighter skills chapter 5 162
What is not a gas found in products of combustion?
A. CO or Carbon monoxide
B. Phosgene
C. Hydrogen cyanide
D. None of the above
D. None of the above
Smoke is a product of incomplete combustion : CO, CO2, Hydrogen cyanide, and phosgene
What is the correct definition difference between heat transfer and heat flux?
A. Heat transfer is the measure of the rate of heat transfer to or from one surface to another
B. Heat flux is the measure of the rate of heat transfer to or from one surface to another
C. Heat flux is the exchange of thermal energy between materials measured over time
D. None of the above
B. Heat flux is the measure of the rate of heat transfer to or from one surface to another
Heat transfer is the exchange of thermal energy between materials measured per unit over time
What are the three primary mechanisms by which heat is transferred?
A. Conduction, Induction, Convection
B. Deduction, Taxs, Liablity
C. Conduction, Convention, Radiation
D. Conduction, Convection, Radiation
D. Conduction, Convection, Radiation
The volume of space in which the cooler air is being drawn into the fire and the volume of space where the hotter gases and smoke are escaping from the fire are called the ____.
A. Flow path
B. Fire Flow
C. Convection
D. Conduction
A. Flow path
Firefigher skills Chapter 5 165
Heat release rate is measured in?
A. Kelvin
B. Fahrenheit
C. Celsius
D. Watts
D. Watts
and Joules per second
What materials burning would be a class A fire?
A. Wood, paper, plastics, and clothing
B. Energized electrical equipment
C. Lithium, potassium, titanium
D. Gasoline, Kerosine, diesel fuel
A. Wood, paper, plastics, and clothing
also inclused grasses
Firefighter skills chapter 5 168
What materials burning would be a class B fire?
A. Wood, paper, plastics, and clothing
B. Energized electrical equipment
C. Lithium, potassium, titanium
D. Gasoline, Kerosine, diesel fuel
D. Gasoline, Kerosine, diesel fuel
also incluses grease, tar, lacquer, oil based paint, motor-oils
Firefighter skills chapter 5 168
What materials burning would be a class C fire?
A. Wood, paper, plastics, and clothing
B. Energized electrical equipment
C. Lithium, potassium, titanium
D. Gasoline, Kerosine, diesel fuel
B. Energized electrical equipment
(Wiring, outlets, fuse boxes, circute breakers, transformers, generators, electrical motors that are energized)
Firefighter skills chapter 5 169
What materials burning would be a class D fire?
A. Wood, paper, plastics, and clothing
B. Energized electrical equipment
C. Lithium, potassium, titanium
D. Gasoline, Kerosine, diesel fuel
C. Lithium, potassium, titanium
(sodium, magnesium, zirconium)
Firefighter skills chapter 5 169
What materials burning would be a class K fire?
A. Wood, paper, plastics, and clothing
B. Cooking oils and fats
C. Lithium, potassium, titanium
D. Gasoline, Kerosine, diesel fuel
B. Cooking oils and fats
Firefighter skills chapter 5 169
What are the three configurations of fuel?
A. Earth, Fire, Wind
B. Surface-to-mass ratio, Orientation of fuel, Continuity of Fuel
C. Gas, Liquid, Solid
D. Eletrical, Wood, Liquid fuel
B. Surface-to-mass ratio, Orientation of fuel, Continuity of Fuel
Firefighter Skills chapter 5 171
What are the stages of fire growth?
A. Incipient stage, Growth stage, Fully developed stage, Decomposition stage
B. Incipient stage, Growth stage, Fully developed stage, Decay stage
C. Growth stage, Incipent stage, Fully developed stage, Decay stage
D. None of the above
B. Incipient stage, Growth stage, Fully developed stage, Decay stage
Firefighter skills 172-177
What fire stage is a backdraft occur?
A. Incipient Stage
B. Growth stage
C. Fully developed stage
D. Decay stage
B. Growth Stage
Although Decay starts when room becomes oxygen depleted a change in ventilation allows fire to move to fully developed
Firefighter skills 174
Liquids who have a ____molecular weight tent to vaporize more readily then liquids with a ____molecular weight.
A, High, Low
B. Low, High
C. Smaller, Smallest
D.Large, High
B. Low, High
Firefighter skills Chapter 5 180
____ is the lowest temperature at which a liquid or solid produces a flammable vapor
A. Smoke point
B. Flash point
C. Boiling point
D. Fire point
B. Flash point
____ is the lowest temperatrue at which a liquid produces enough vapor to sustain continuous fire.
A. Smoke point
B. Flash point
C. Boiling point
D. Fire point
D. Fire point
Gas with a vapor density of .07 will ____ compaired to air?
A. Rise
B. Fall
C. Neutral
D. Same
A. Rise
Vapor density is equal to 1, anything greater than 1 will sink in a confinced space and anything less than 1 will rise
Firefighter skills 180
What accroynm best discribes “too rich to burn”?
A. LEL
B. UEL
C. FREL
D. BLEVE
B. UEL
Upper explosive limit
The gas is out of rage for a fuel air mix at the upper range to burn effectivly
When propane tank on fire is it better to cool the ____ of the tank to prevent a BLEVE.
A. Top
B. Bottom
C. Side wall
D. Pressure relief valve
A. Top
