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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor.

Condenser
Expansion valve
Compressor
Evaporator

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Refrigeration and Air Conditioning
The evaporator used in household refrigerators is

Frosting evaporator
Defrosting evaporator
None of these
Non-frosting evaporator

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

Higher than
Lower than
Same as
None of the listed here

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Refrigeration and Air Conditioning
In Electrolux refrigerator

Ammonia evaporates in hydrogen
Hydrogen evaporates in ammonia
Ammonia is absorbed in hydrogen
Ammonia is absorbed in water

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant is dry saturated vapour

Before entering the condenser
After leaving the compressor
Before entering the compressor
After leaving the condenser

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

None of these
Negative
Positive
Zero

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