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Refrigeration and Air Conditioning

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

Dry saturated vapour
Wet vapour
Saturated liquid
Superheated vapour

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Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Constant pressure lines
Constant total heat lines
Constant entropy lines
Constant temperature lines

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Refrigeration and Air Conditioning
The curved lines on a psychrometric chart indicates

Relative humidity
Dew point temperature
Dry bulb temperature
Wet bulb temperature

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Refrigeration and Air Conditioning
The refrigerant supplied to a compressor must be

Superheated vapour refrigerant
Dry saturated liquid refrigerant
None of these
A mixture of liquid and vapour refrigerant

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Refrigeration and Air Conditioning
Wet bulb temperature is the temperature of air recorded by a thermometer, when

None of these
Its bulb is surrounded by a wet cloth exposed to the air
It is not affected by the moisture present in the air
The moisture present in it begins to condense

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

Same
Very low
High
Low

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