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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Under cooling in a refrigeration cycle

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

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Refrigeration and Air Conditioning
During humidification process, __________ increases.

Relative humidity
Dry bulb temperature
Specific humidity
Wet bulb temperature

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Refrigeration and Air Conditioning
The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

Compression of the refrigerant vapour
Condensation of the refrigerant vapour
Evaporation of the refrigerant liquid
Metering of the refrigerant liquid

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Refrigeration and Air Conditioning
The dry bulb temperature lines, on the psychrometric chart are

Vertical and uniformly spaced
Horizontal and uniformly spaced
Curved lines
Horizontal and non-uniformly spaced

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Refrigeration and Air Conditioning
The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is

Same
Less
More
More or less depending on ambient conditions

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m/hK
m/h
m²/hK
m²/h

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MORE MCQ ON Refrigeration and Air Conditioning

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