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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
23

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

23) For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of

copper

aluminium

steel

brass

Answer is:

steel

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

24) The highest thermal diffusivity is of

iron

lead

concrete

wood

Answer is:

lead

25) While designing the refrigeration system of an aircraft, the prime consideration is that the

system has high C.O.P.

power per TR is low

mass of refrigerant circulated in the system is low

mass of the refrigeration equipment is low

Answer is:

mass of the refrigeration equipment is low

26) The heat transfer takes place according to

Zeroth law of thermodynamics

First law of thermodynamics

Second law of thermodynamics

Kirchhoff's law

Answer is:

Second law of thermodynamics

27) An electrolux refrigerator is called a __________ absorption system.

single fluid

two fluids

three fluids

four fluids

Answer is:

three fluids

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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