Question

A correct ranking from highest to lowest for energy losses in an automobile is:
-Air resistance; Frictional losses in the engine; Thermodynamic losses of a heat engine

-Thermodynamic losses of a heat engine; Braking resistance; Frictional losses in the engine

-Thermodynamic losses of a heat engine; Tire resistance; Frictional losses in the engine

-Thermodynamic losses of a heat engine; Frictional losses in the engine; Tire resistance

-Braking resistance; Thermodynamic losses of a heat engine; Frictional losses in the engine

Answer 1

Fourth option is the correct answer.

Means -

Thermodynamic losses of a heat engine > Frictional losses in the engine > Tire resistance.

Explanation -

Thermodynamic losses is the highest proportion of loss.

Then come to losses in the engine because this is continuous loss even if the automobile is at the standstill.

Third loss is due to tire resistance which comes in picture when the vehicle moves.