The rise in temperature caused by compression in a supercharger serves which primary purpose for the fuel?

• A. Preventing vaporization.
• B. Cooling the fuel.
• C. Complete vaporization of fuel.
• D. Arresting combustion.

Answer: (C)

The main idea here is how compression heating affects fuel when it’s introduced into the engine. When air is compressed by the supercharger, its temperature rises. That extra heat helps the fuel—introduced as a liquid—vaporize more readily so it can mix uniformly with the hot, compressed air. Vaporized fuel burns more cleanly and efficiently than liquid droplets, so the system is designed so the fuel vaporizes, contributing to a more complete and stable combustion process.

Choosing the other ideas would go against how forced induction and fuel-air mixing work. Heating from compression does not prevent vaporization; it doesn’t cool the fuel; and it’s not about stopping combustion. The purpose of the temperature rise is to promote the fuel’s vaporization for better mixing and combustion.