Engine Types

What is the main difference between an internal combustion engine and an electric motor?

• The internal combustion engine uses electricity, while the electric motor uses fuel.

• The electric motor has no moving parts.

• The internal combustion engine burns fuel to generate energy, while the electric motor uses electrical energy stored in batteries.

• Both engines operate in the same way.

What type of engine is more efficient in energy conversion?

• Internal combustion engine

• Electric motor

• Both are equally efficient

• It depends on the size of the engine

Which of the following engines requires less maintenance?

• Internal combustion engine

• Electric motor

• Both require the same maintenance

• None requires maintenance

What component is essential in an electric motor but not in a combustion engine?

• Spark plugs

• Carburetor

• Ignition coil

• Electronic controller

What is a main advantage of electric motors over combustion engines?

• Higher emissions of pollutants

• Louder operating noise

• Greater energy efficiency and lower maintenance

• Higher energy consumption