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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m²/h
m/hK
m/h
m²/hK

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Refrigeration and Air Conditioning
A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called

Low side float valve
Thermostatic expansion valve
Automatic expansion valve
High side float valve

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Refrigeration and Air Conditioning
The humidification process, on the psychrometric chart is shown by

Horizontal line
Inclined line
Vertical line
Curved line

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Refrigeration and Air Conditioning
A standard ice point temperature corresponds to the temperature of

Ice at 4°C
Mixture of ice and water under equilibrium conditions
Solid and dry ice
Water at 0°C

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Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Expansion valve
Compressor
Evaporator
Condenser

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

Low
Same
High
Very low

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MORE MCQ ON Refrigeration and Air Conditioning

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