Question

The transfer of heat takes place due to difference in temperature and from higher temperature to lower temperature.

(a) True

(b) False

This question was posed to me at a job interview.

The doubt is from Heat Rejection topic in portion Heat Rejection and Cooling of IC Engine

Answer 1

The correct answer is:

(a) True

Heat transfer always occurs due to a temperature difference, moving from the region of higher temperature to the region of lower temperature. This is a fundamental principle of thermodynamics and applies to all forms of heat transfer: conduction, convection, and radiation. In the context of an engine, heat moves from the hot engine components to the coolant, the air, or other surroundings, all driven by the temperature gradient.