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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
182

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

183) During dehumidification process, __________ remains constant.

wet bulb temperature

relative humidity

dry bulb temperature

specific humidity

Answer is:

dry bulb temperature

184) The value of the wave length for maximum emissive power is given by

Kirchhoff's law

Stefan's law

Wein's law

Planck's law

Answer is:

Wein's law

185) Emissivity of a body will be equal to its absorptivity at all temperatures.

Yes

No

Unknown

None

Answer is:

No

186) R-12 is generally preferred over R-22 in deep freezers since

it has low operating pressures

it gives higher coefficient of performance

it is miscible with oil over large range of temperatures

all of the above

Answer is:

it is miscible with oil over large range of temperatures

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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