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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In chemical dehumidification process,

All of these
Dry bulb temperature increases
Wet bulb temperature decreases
Dew point temperature decreases

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Refrigeration and Air Conditioning
A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes a power of 30 kW. The coefficient of performance of the system will be

4
43834
43833
3

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Refrigeration and Air Conditioning
The mass of water vapour present in __________ is called absolute humidity.

1 kg of dry air
1 m3 of dry air
1 kg of wet air
1 m3 of water

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Refrigeration and Air Conditioning
Nusselt number (NN) is given by

NN = ρ V l /μ
NN = V²/t.cp
NN = μ cp/k
NN = hl/k

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Refrigeration and Air Conditioning
During sensible cooling of air, specific humidity

None of the listed here
Decreases
Increases
Remains constant

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Refrigeration and Air Conditioning
For obtaining high COP, the pressure range of compressor should be

High
Any value
Low
Optimum

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MORE MCQ ON Refrigeration and Air Conditioning

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