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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
178

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

178) The heat is transferred by conduction, convection and radiation in

melting of ice

boiler furnaces

condensation of steam in condenser

none of these

Answer is:

boiler furnaces

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

179) A thermostatic expansion valve in a refrigeration system

ensures the evaporator completely filled with refrigerant of the load

is suitable only for constant load systems

maintains different temperatures in evaporator in proportion to load

none of the above

Answer is:

ensures the evaporator completely filled with refrigerant of the load

180) The temperature rise, between the condenser outlet and expansion valve in ammonia vapour compression system, should be as low as possible.

Yes

No

Unknown

None

Answer is:

Yes

181) The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called

humidity ratio

relative humidity

absolute humidity

degree of saturation

Answer is:

degree of saturation

182) For unsaturated air, the dew point temperature is __________ wet bulb temperature.

equal to

less than

more than

none of these

Answer is:

less than

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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