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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The coefficient of performance of Heat Pump is always ___ one.

Equal to
Less than
Greater than
None of the listed here

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Refrigeration and Air Conditioning
The relative humidity lines on a psychrometric chart are

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

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Refrigeration and Air Conditioning
An evaporator is also known as

Freezing coil
All of these
Chilling coil
Cooling coil

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Refrigeration and Air Conditioning
Critical pressure of a liquid is the pressure

Above which liquid becomes solid
Above which liquid will remain liquid
Above which liquid becomes gas
Above which liquid becomes vapour

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Refrigeration and Air Conditioning
The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is

Smaller
Smaller/bigger depending on capacity
Equal
Bigger

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Refrigeration and Air Conditioning
Under cooling in a refrigeration cycle

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

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MORE MCQ ON Refrigeration and Air Conditioning

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