311 PART 1

Which of the following is a category of fuel used in domestic properties?

• Hydrogen

• Natural gas

• Nuclear energy

• Solar power

What type of fuel is LPG?

• Solid fuel

• Liquid petroleum gas

• Sustainable fuel

• Natural gas

Which of the following is considered a sustainable, low carbon fuel?

• Oil

• Coal

• Natural gas

• Biomass

What is natural gas primarily composed of?

• Water vapor

• Hydrocarbon gases

• Carbon dioxide

• Nitrogen

Why is an odour added to natural gas before distribution?

• To improve its energy content

• To make it visible

• To detect leaks

• To change its color

What happens when natural gas is burnt?

• It releases a low amount of energy

• It releases a high amount of energy

• It becomes solid

• It turns into water

Where is natural gas commonly found?

• In the atmosphere

• In shallow water bodies

• Deep below the Earth's surface

• On mountain tops

What is the primary component of natural gas by percentage?

• Ethane

• Propane

• Methane

• Carbon dioxide

Which gas in natural gas has a chemical symbol of C3H8?

• Methane

• Propane

• Butane

• Ethane

What is the specific gravity range of natural gas?

• 0.2–0.4

• 0.4–0.6

• 0.6–0.8

• 0.8–1.0