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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The specific humidity during heating and humidification process.

Remains constant
Increases
None of these
Decreases

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Refrigeration and Air Conditioning
In a vapour compression cycle, the refrigerant immediately after expansion valve is

Wet vapour
Saturated liquid
Liquid
Sub-cooled liquid

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Refrigeration and Air Conditioning
The emissivity of a polished silver body is ____ as compared to black body.

Same
Low
High
Very low

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Refrigeration and Air Conditioning
The condition of refrigerant after passing through the condenser in a vapour compression system is

Wet vapour
Dry saturated vapour
Saturated liquid
Superheated vapour

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Refrigeration and Air Conditioning
In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to

Collect liquid refrigerant and prevent it from going to compressor
Detect liquid in vapour
Collect vapours
Superheat the vapour

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Refrigeration and Air Conditioning
The evaporator changes the low pressure liquid refrigerant from the expansion valve into

Low pressure vapour refrigerant
High pressure liquid refrigerant
None of these
Low pressure liquid and vapour refrigerant

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