Question 1

Which of the following is a byproduct of complete combustion?

Accepted Answer

carbon dioxide

Answer

carbon monoxide

Answer

sulfur dioxide

Answer

methane

Question 2

Which of the following is NOT a primary element required for combustion?

Accepted Answer

nitrogen

Answer

fuel

Answer

oxygen

Answer

heat

Question 3

What is the chemical process of combustion?

Accepted Answer

oxidation

Answer

reduction

Answer

evaporation

Answer

condensation

Question 4

Which of the following is an example of spontaneous combustion?

Accepted Answer

hay bales self-igniting

Answer

controlled combustion in a fireplace

Answer

kindling a fire with a matchstick

Answer

burning of gasoline in an engine

Question 5

What is the main combustion product of natural gas?

Accepted Answer

carbon dioxide

Answer

oxygen

Answer

carbon monoxide

Answer

methane

Question 6

What is the minimum temperature at which a substance can undergo combustion called?

Accepted Answer

ignition temperature

Answer

flash point

Answer

oxidation temperature

Answer

flame temperature

Question 7

What is the primary role of a catalyst in a combustion reaction?

Accepted Answer

to increase the rate of reaction

Answer

to prevent the formation of carbon dioxide

Answer

to produce more heat energy

Answer

to decrease the temperature needed for ignition

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