Film boiling is usually not desired in commercial equipments, because
A) The heat transfer rate is low in view of the large temperature drop
B) It is difficult to maintain
C) It is not economic
D) None of these
Correct Answer:
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Q24: _ paint has the maximum absorption coefficient.
A)Black
B)Yellow
C)White
D)Grey
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A)Superheated steam is
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A)Total condenser
B)Vacuum evaporator
C)Partial condenser
D)Double
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Q31: Reynold's analogy states that (where, St =
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