Q.

If the heat transfer efficiency is 0.5 and the melting efficiency is 0.6, then the overall efficiency will be?

A. 0.83
B. 0.03
C. 0.30
D. 0.12
Answer» C. 0.30
Explanation: ηtotal = ηmelting * ηheat transfer, where η denotes efficiency. there are two types of efficiencies, one is melting efficiency and another is heat transfer efficiency.
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