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Q. |
Which of the following is a good medium for constant temperature heating? |
A. | water |
B. | steam |
C. | coolant |
D. | diesel |
Answer» B. steam | |
Explanation: for constant temperature heating (or drying), steam is a very good medium since isothermal condition can be maintained by allowing saturated steam to condense at that temperature and utilising the latent heat released for heating purposes. |
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