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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?

Fluorine
Carbon dioxide
Sulphur dioxide
Ammonia

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

Zero
Positive
Negative
None of these

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Refrigeration and Air Conditioning
Accumulators should have adequate volume to store refrigerant charge at least

0.5
0.1
0.75
0.25

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Refrigeration and Air Conditioning
The pressure at the outlet of a refrigerant compressor is called

Back pressure
Critical pressure
Suction pressure
Discharge pressure

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Refrigeration and Air Conditioning
Highest pressure encountered in a refrigeration system should be

Near critical pressure
Much above critical pressure
Much below critical pressure
Critical pressure of refrigerant

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Refrigeration and Air Conditioning
In a reversed Brayton cycle, the heat is absorbed by the air during

Constant pressure expansion process
Constant pressure cooling process
Isentropic compression process
Isentropic expansion process

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