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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
239

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

239) The boiling point of ammonia is

-10.5 Degree Centigrade

-30 Degree Centigrade

-33.3 Degree Centigrade

-77.7 Degree Centigrade

Answer is:

-33.3 Degree Centigrade

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

240) The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and

carbon dioxide

sulphur dioxide

lithium bromide

R-12

Answer is:

lithium bromide

241) In a black body, all radiations are rejected.

Right

Wrong

Answer is:

Wrong

242) Most air cooled condensers are designed to operate with a temperature difference of

5 Degree Centigrade

8 Degree Centigrade

14 Degree Centigrade

22 Degree Centigrade

Answer is:

14 Degree Centigrade

243) In a reversed Brayton cycle, the heat is absorbed by the air during

isentropic compression process

constant pressure cooling process

isentropic expansion process

constant pressure expansion process

Answer is:

constant pressure expansion process

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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