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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The material of pipe lines for a system using Freon as a refrigerant should be

Steel
Aluminium
Brass
Copper

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Refrigeration and Air Conditioning
In a refrigeration cycle, the flow of refrigerant is controlled by

Condenser
Evaporator
Compressor
Expansion valve

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Refrigeration and Air Conditioning
Air refrigeration operates on

Reversed Carnot cycle
Rankine’s cycle
Brayton cycle
Carnot cycle

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Refrigeration and Air Conditioning
The wet bulb depression indicates _________ humidity of the air.

None of these
Relative
Specific
Absolute

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Refrigeration and Air Conditioning
In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively

Ammonia and water
Ammonia and lithium bromide
Water and lithium bromide
Water and water

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Refrigeration and Air Conditioning
Superheating in a refrigeration cycle

O.P remains unaltered
Increases C.O.P
Decreases C.O.P
Other factors decide C.O.P

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MORE MCQ ON Refrigeration and Air Conditioning

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