Question

The specific fuel consumption of a diesel engine is

• A. Incomparable with petrol engine
• B. Same as petrol engine
• C. More than petrol engine
• D. Less than petrol engine

Hint:

Diesel engines have lower specific fuel consumption than petrol engines because of higher efficiency.

Answer 1

The Correct Option is D

Diesel engines are more fuel-efficient than petrol engines, hence their specific fuel consumption is less. This means diesel engines consume less fuel per unit power output compared to petrol engines, due to higher thermal efficiency and better combustion characteristics.