Question

The running cost of a petrol engine is ____________ that of a diesel engine.

(a) higher than

(b) lower than

(c) equal to

(d) none of the mentioned

The question was asked in my homework.

The above asked question is from Comparison of Two Stroke S.I. and C.I. Engines topic in portion Two Stroke Engines of IC Engine

Answer 1

The correct answer is:

(a) higher than

 Explanation:

The running cost of a petrol engine is generally higher than that of a diesel engine. This is because:

1. Fuel Cost: Petrol tends to be more expensive than diesel fuel on a per-liter basis, so for the same distance traveled, a petrol engine will typically cost more in fuel.

2. Fuel Efficiency: Diesel engines are more fuel-efficient than petrol engines. They extract more energy from the same amount of fuel due to the higher energy density of diesel and the more efficient compression ignition process.

3. Maintenance and Durability: Diesel engines are often more durable and can have lower maintenance costs over their lifespan, but the initial cost and running cost per unit of energy produced are typically higher for petrol engines.

Hence, the running cost of a petrol engine is higher than that of a diesel engine