Principles of Combustion Quiz

What are the three components required for fire according to the principles of combustion?

• Fuel, Oxygen, Heat

• Fuel, Water, Heat

• Oxygen, Water, Heat

• Fuel, Oxygen, Water

What is the result of combining propane, oxygen, and a spark?

• Fire

• Flame

• Smoke

• Ash

Combustion is a chemical reaction with which element?

• Hydrogen

• Nitrogen

• Oxygen

• Carbon

Which of the following gases is commonly used in plumbing situations for soldering, heating water, space heating, and cooking?

• Oxygen

• Natural gas

• Carbon dioxide

• Helium

Which of the following is NOT one of the three common gases used in plumbing situations?

• Propane

• Butane

• Methane

• Natural gas

What is one of the uses of gases in plumbing situations?

• Cooling water

• Soldering

• Freezing pipes

• Painting

Which gas has the highest calorific value?

• Natural gas

• Propane

• Butane

• Methane

What is the relative density of Propane?

• 0.58

• 1.78

• 2.0

• 1.0

Which gas has the highest flame temperature?

• Natural gas

• Propane

• Butane

• Methane

What is the air/gas ratio for Natural gas?

• 10:1

• 24:1

• 30:1

• 20:1