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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Bright green
Yellow
Orange
Red

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Refrigeration and Air Conditioning
The humidity ratio or specific humidity is the mass of water vapour present in

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

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Refrigeration and Air Conditioning
One tonne of refrigeration (1TR) means that the heat removing capacity is

420 kJ/min
210 kJ/min
21 kJ/min
620 kJ/min

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Refrigeration and Air Conditioning
The coefficient of performance is the ratio of the refrigerant effect to the

Work done by compressor
Heat of compression
Enthalpy increase in compressor
All of these

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Refrigeration and Air Conditioning
In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be

0.67
0.6
0.3
1.5

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

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

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MORE MCQ ON Refrigeration and Air Conditioning

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