MCQ Detailed View

Light petrol engines, like those used in cars, motorcycles, and scooters, require a fuel that ignites easily and burns smoothly. The main fuel used for these engines is gasoline, also called petrol.

Gasoline is a light hydrocarbon fuel, made from refining crude oil. It has a low boiling point and produces a high amount of energy per unit of fuel. This makes it ideal for spark ignition engines, where the fuel-air mixture is ignited by a spark plug.

Other fuels like kerosene oil and paraffin oil are heavier and do not ignite as easily in spark ignition engines. They are usually used in diesel engines or heaters because diesel engines use compression ignition instead of a spark. Heavy fuel oil is even thicker and is mostly used in large ships or industrial engines, not light petrol engines.

Gasoline engines are popular because gasoline is efficient, easy to store, and provides smooth engine performance. It burns quickly and allows engines to run at higher speeds, making it perfect for small vehicles.

Understanding the type of fuel for different engines is an important concept in Chemistry and everyday science, especially when learning about fuels, combustion reactions, and energy.

So the correct answer is Gasoline, as it is the main fuel used for light petrol engines.