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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)

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

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Refrigeration and Air Conditioning
The vertical and uniformly spaced lines on a psychrometric chart indicates

Wet bulb temperature
Dry bulb temperature
Dew point temperature
Specific humidity

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Refrigeration and Air Conditioning
The pressure at the outlet of a refrigerant compressor is called

Suction pressure
Back pressure
Discharge pressure
Critical pressure

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Refrigeration and Air Conditioning
In a refrigeration cycle, the flow of refrigerant is controlled by

Evaporator
Expansion valve
Condenser
Compressor

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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 alignment circle is marked on the psychrometric chart at

26°C DBT and 60% RH
20°C DBT and 50% RH
20°C DBT and 60% RH
26°C DBT and 50% RH

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