Combustion - Drew

What is combustion?

• Combustion is the chemical reaction that occurs when a fuel is burned with an oxidant.

• Combustion is the process of photosynthesis in plants.

• Combustion is the freezing of water into ice.

• Combustion is the process of converting solid to gas without passing through a liquid state.

What does the diagram illustrate?

• The diagram illustrates an internal combustion engine.

• The diagram illustrates a steam engine.

• The diagram illustrates a jet engine.

• The diagram illustrates an electric motor.

What is the most common type of fuel used in automobiles?

• Gasoline

• Diesel

• Electricity

• Hydrogen

What can be added to gasoline to prevent pre-ignition or pinging?

• Anti knock additives

• Water

• Sugar

• Oil

Which fuel has a higher energy content per litre, petrol or diesel?

• Petrol

• Diesel

What is the octane rating of regular gasoline?

• 85

• 87

• 89

• 91

The difference between leaded and unleaded petrol is:

• Leaded petrol contains lead additives, while unleaded petrol does not.

• Unleaded petrol contains lead additives, while leaded petrol does not.

• Both leaded and unleaded petrol contain lead additives.

• Neither leaded nor unleaded petrol contain lead additives.

What does a high octane number in gasoline indicate?

• A high octane number indicates better resistance to knock.

• A high octane number indicates lower energy content.

• A high octane number indicates faster fuel consumption.

• A high octane number indicates higher emissions.

Which type of engines require high-octane gasoline?

• High-compression or turbocharged engines require high-octane gasoline.

• Low-compression engines require high-octane gasoline.

• Electric engines require high-octane gasoline.

• Diesel engines require high-octane gasoline.

What is required for fuel to burn in an engine?

• Oxygen

• Water

• Carbon Dioxide

• Nitrogen