Question

The principle of evaporative cooling is not used in:

• A. Ice plant
• B. Dessert cooler
• C. Earthen pot
• D. Acetone poured on skin

Hint:

Evaporative cooling = works with air coolers, pots, but not ice plants!

Answer 1

The Correct Option is A

Evaporative cooling is the process of removing heat by allowing a liquid to evaporate, which absorbs heat from the surroundings.
It is used in dessert coolers (air coolers) where water evaporates to cool air, and in earthen pots where water seeps and evaporates, keeping the contents cool.
When acetone is poured on the skin, it evaporates quickly and absorbs heat, producing a cooling effect.
An ice plant, however, uses mechanical refrigeration with compressors and condensers to make ice — it does not rely on simple evaporation into air.
Therefore, the ice plant does not use the principle of evaporative cooling in this sense.