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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In S.J. unit, one ton of refrigeration is equal to

420 kJ/ min
210 kJ/ min
21 kJ/ min
840 kJ/ min

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

Soap and water
Sulphur sticks
Halide torch
All of these

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Refrigeration and Air Conditioning
Which of the following is not a desirable property of a refrigerant?

Large latent heat
Low boiling point
Good electrical conductor
High risibility with oil

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Refrigeration and Air Conditioning
The conditioned air supplied to the room must have the capacity to take up

Both room sensible heat and latent heat loads
Room sensible heat load only
Room latent heat load only
None of the listed here

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Refrigeration and Air Conditioning
The human body feels comfortable when the heat stored in the body is

Negative
Positive
Zero
None of these

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Refrigeration and Air Conditioning
During sensible heating of air _________ decreases.

Relative humidity
Specific humidity
Wet bulb temperature
Dry bulb temperature

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