Fire and Combustion Quiz

What happens during oxidation in a chemical reaction?

• Electrons are lost

• Atoms gain neutrons

• Molecules lose mass

• Energy is absorbed

What does the acronym OIL RIG stand for?

• Oxygen Is Lit, Really Intense Glow

• Oxidation Is Loss, Reduction Is Gain

• Organic Is Lethal, Radiation Is Giant

• Oxidation Isn't Linear, Reduction Is Gradual

Which process is the opposite of oxidation?

• Evaporation

• Reduction

• Sublimation

• Neutralization

Combustion is best described as a:

• Physical state change

• High-temperature exothermic redox reaction

• Cooling process

• Neutralization of acids

What is the usual oxidant in a combustion reaction?

• Nitrogen

• Hydrogen

• Oxygen

• Carbon dioxide

A visible flame occurs in combustion when:

• Fuel turns to liquid

• Vaporization occurs

• Temperature falls

• Smoke settles

What is needed to initiate combustion?

• Oxidizer fluid

• Fuel condensation

• Activation energy

• Fire blanket

When does the spark ignite in a spark ignition engine?

• Before the intake stroke

• During the exhaust stroke

• Just before the combustion stroke

• After fuel evaporation

What is the flash point of a liquid?

• Boiling temperature

• Point where it starts to freeze

• Lowest temperature it gives off ignitable vapors

• Highest possible combustion point

Which of the following is classified as a flammable fuel?

• Diesel

• Petrol (gasoline)

• Kerosene

• Heavy oil