Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning

31.
The sensible heat during humidification process decreases.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
According to Newton's law of cooling, the heat transfer from a hot body to a cold body is
directly proportional to the surface area
directly proportional to the difference of temperatures between the two bodies
either (a) or (b)
both (a) and (b)
Answer: Option
Explanation:
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33.
The freezing point of carbon dioxide is equal to boiling point of R-12.
Correct
Incorrect
Answer: Option
Explanation:
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34.
The condition of refrigerant as it leaves the compressor in a vapour compression system is
saturated liquid
wet vapour
dry saturated vapour
superheated vapour
Answer: Option
Explanation:
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35.
The super-heating in a refrigeration cycle
does not alter C.O.P.
increases C.O.P.
decreases C.O.P.
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.