Question

The fuel in the vehicle can be saved by ___________

(a) Not using vehicle often

(b) Mixing water with fuel

(c) Cleaning the vehicle

(d) Properly inflating the tyres

This question was posed to me by my school teacher while I was bunking the class.

This intriguing question originated from Friction and Forces in section Laws of Motion of Engineering Physics I

Answer 1

Correct option is (d) Properly inflating the tyres

For explanation: When the tyres are properly inflated, the area of contact between the tyre and the ground is reduced. This reduces rolling friction. Consequently, the automobile covers greater distance for the same quantity of fuel consumed.