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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For unsaturated air, the dew point temperature is __________ wet bulb temperature.

None of these
Less than
More than
Equal to

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Refrigeration and Air Conditioning
The freezing point of R-12 is

-95.2°C
-135.8°C
-107.7°C
-86.6°C

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m²/h
m²/hK
m/hK
m/h

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Refrigeration and Air Conditioning
As relative humidity decreases, the dew point temperature will be ___ wet bulb temperature.

Same as
Higher than
None of the listed here
Lower than

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Refrigeration and Air Conditioning
The leakage in a refrigeration system using Freon is detected by

Soap and water
Halide torch
All of these
Sulphur sticks

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Refrigeration and Air Conditioning
In vapour compression cycle the condition off refrigerant is dry saturated vapour

After passing through the condenser
Before passing through the condenser
Before entering the compressor
After passing through the expansion or throttle valve

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MORE MCQ ON Refrigeration and Air Conditioning

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