Combustion Quiz

What are the necessary components for combustion to occur?

• Fuel, Oxygen, and Water

• Fuel, Oxygen, and Heat

• Fuel, Carbon Dioxide, and Heat

• Fuel, Nitrogen, and Heat

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

• Water

• Smoke

• Flame

• Ash

Which of the following gases is commonly used for soldering in plumbing situations?

• Helium

• Natural gas

• Oxygen

• Nitrogen

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

• Painting

• Cooling

• Heating water

• Drying

Which of the following is NOT a common gas used in plumbing situations?

• Propane

• Butane

• Argon

• Natural gas

Which gas is commonly used for space heating in plumbing?

• Butane

• Neon

• Hydrogen

• Helium

What is the relative density of propane?

• 0.58

• 1.78

• 2.0

• 3.5

Which gas has the highest calorific value?

• Natural gas

• Propane

• Butane

• Methane

What is the flame temperature of natural gas?

• 1930°C

• 1980°C

• 1996°C

• 2100°C

What is the approximate air/gas ratio for butane?

• 10:1

• 24:1

• 30:1

• 15:1