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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The central air conditioning system has ___________ overall efficiency as compared to individual systems.

Higher
Lower
Same
None of these

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

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

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Refrigeration and Air Conditioning
The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will

Remain unaffected
Increase
Decrease
May increase or decrease depending on the type of refrigerant used

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Refrigeration and Air Conditioning
The superheated vapour region, in a pressure enthalpy chart, is represented by the space

To the left of saturated liquid line
Between the saturated liquid line and saturated vapour line
None of these
To the right of saturated liquid line

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Refrigeration and Air Conditioning
The conditioned air supplied to the room must have the capacity to take up

Both room sensible heat and latent heat loads
None of the listed here
Room sensible heat load only
Room latent heat load only

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

Specific humidity
Wet bulb temperature
Dew point temperature
Dry bulb temperature

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