What kind of vehicle engine is powered by Diesel fuel?

• A. Gasoline Engine
• B. Turbocharged Engine
• C. Rotary Engine
• D. Compression Ignition Engine

Answer: (D)

A Compression Ignition Engine is designed to operate using Diesel fuel. This type of engine works by compressing air to a high degree, causing it to heat up, and then injecting Diesel fuel into this hot air. The high temperature from the compressed air ignites the fuel, which is a fundamental principle of how Diesel engines operate.

In contrast, Gasoline Engines use spark plugs to ignite a mixture of gasoline and air, which differentiates them from Diesel engines in terms of operation. Turbocharged Engines can be either gasoline or Diesel; the presence of a turbocharger is about enhancing performance rather than the type of fuel used. Rotary Engines also do not use Diesel fuel, as they operate on a completely different mechanism involving a triangular rotor that rotates within an oval chamber. Thus, the Compression Ignition Engine is accurately associated with Diesel fuel, making it the correct choice.