Fire and Gas Quiz

What are the three elements required to start and maintain a fire, as described in the fire triangle?

• Oxygen, Heat, Water

• Oxygen, Heat, Fuel

• Oxygen, Light, Fuel

• Heat, Fuel, Carbon dioxide

What does the term "calorific value" refer to?

• The amount of heat absorbed by a specific amount of fuel

• The amount of heat produced by a specific amount of fuel

• The temperature at which a fuel burns

• The duration a fuel can burn

Which gas has the highest calorific value?

• Propane

• Butane

• Natural Gas

• Oxygen

What gas is commonly used when soldering fittings to copper pipe?

• Natural Gas

• Oxygen

• Butane

• Propane

What is the air to gas ratio required for natural gas combustion?

• 2:1

• 5:1

• 6.5:1

• 3:1

At what temperature does natural gas typically ignite?

• 540°C

• 650°C

• 500°C

• 700°C

Which component is not typically found in natural gas?

• Methane

• Carbon dioxide

• Helium

• Argon

What is the primary byproduct of combustion in a natural gas engine?

• Carbon monoxide

• Water vapor

• Nitrogen oxides

• Sulfur dioxide

Which gas is primarily responsible for the greenhouse effect when released during natural gas combustion?

• Methane

• Carbon dioxide

• Nitrogen oxides

• Water vapor

How does the calorific value of butane compare to that of propane?

• Butane has a higher calorific value

• Propane has a higher calorific value

• Both have the same calorific value

• Depends on the conditions of combustion