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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The domestic refrigerator uses following type of compressor

Piston type reciprocating
Centrifugal
Miniature sealed unit
Axial

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is

Very wet vapour
Dry vapour
Wet vapour
High pressure saturated liquid

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Refrigeration and Air Conditioning
In case of sensible cooling of air, the coil efficiency is given by

1 - B.P.F.
1/ B.P.F.
1 + B.P.F.
P.F. - 1

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Refrigeration and Air Conditioning
The difference between dry bulb temperature and dew point temperature, is called

Degree of saturation
Wet bulb depression
Dew point depression
Dry bulb depression

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Refrigeration and Air Conditioning
The coefficient of performance of a domestic refrigerator is ________ as compared to a domestic air-conditioner.

Same
None of these
Less
More

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

More
More or less depending on ambient conditions
Less
Same

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MORE MCQ ON Refrigeration and Air Conditioning

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