Multiple choice

________ is used to cool the machines in automobiles.

  1. Radiator

  2. Radar

  3. Lactometer

  4. Ammeter

  5. none

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A radiator is a heat exchanger that transfers thermal energy from hot coolant to the air. It circulates engine coolant through a series of tubes and fins, allowing heat to dissipate. This prevents the engine from overheating during operation.