Which state must a fuel be in for combustion to take place?

Which toxic gas is commonly produced by fire?

Which form of heat transfer consists of kinetic energy moving from one particle to another?

Heat transfer in the form of invisible waves is called __________.

What is the term for the lowest temperature at which a liquid produces enough flammable vapor to burn momentarily?

What is the vapor density of air?

What is another term for flammability limits?

A) Explosive limits

B) Volatility index

C) Oxidation range

D) Pyrophoric limits

Which class of fire involves ordinary combustibles such as wood and paper?

A) A

B) B

C) C

D) D

What is the method of choice for extinguishing most Class B fires?

Fires involving combustible cooking media, such as oils and grease, are considered Class _____.

A) E

B) F

C) G

D) K

What is the percentage of oxygen normally found in air?

A) 14.7 percent

B) 18 percent

C) 19.5 percent

D) 21 percent

What does smoke puffing in and out of a structure indicate?

What is another term for fire point?

A) Ignition point

B) Flame point

C) Flash point

D) Autoignition temperature

Which geometric figure is used to represent the four elements required for a self-sustaining fire?

A) Pyramid

B) Square

C) Polygon

D) Tetrahedron

What is the process called when a material decomposes upon being exposed to heat in the absence of oxygen?

A) Vaporization

B) Pyrolysis

C) Oxidation

D) Electrolysis

A chemical reaction that produces heat is __________.

A) exothermic

B) thermodynamic

C) isothermic

D) endothermic

What is a term for rapid oxidation that produces heat and light?

A) Combustion

B) Catalyzation

C) Vaporization

D) Pyrolysis

Heat traveling from one end of a steel beam to the other end is an example of __________.

A) convection

B) radiation

C) oxidation

D) conduction

23. Which form of heat transfer travels in all directions?

A) Convection

B) Thermal radiation

C) Conduction

D) Direct contact