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InterviewSolution
| 1. |
How does a desert cooler work on hot dry day |
| Answer» On a hot day ,the temperature is high and the humidity is low .The rate of evaporation increases with increase in temperature and decrease in humidity .A desert cooler functions on the principle of evaporation .The water takes heat from the hot desert cooler and evaporates .The evaporation of water cools the pads and the circulating water .As a result ,the incoming air also gets cooled down . | |