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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The emissivity of a polished silver body is ____ as compared to black body.

Same
Low
Very low
High

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

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

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

Dew point temperature
Dry bulb temperature
Wet bulb temperature
Specific humidity

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Refrigeration and Air Conditioning
The lowest thermal diffusivity is of

Lead
Rubber
Iron
Aluminium

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Refrigeration and Air Conditioning
In vapour compression cycle the condition off refrigerant is dry saturated vapour

Before entering the compressor
After passing through the expansion or throttle valve
After passing through the condenser
Before passing through the condenser

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Refrigeration and Air Conditioning
In vapour compression cycle the condition of refrigerant is superheated vapour

Before passing through the condenser
After passing through the condenser
Before entering the expansion valve
After passing through the expansion or throttle valve

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MORE MCQ ON Refrigeration and Air Conditioning

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