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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
A vapour absorption refrigeration system

Gives noisy operation
Requires little power consumption
Gives quiet operation
Cools below 0°C

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Refrigeration and Air Conditioning
In a pressure enthalpy chart, the space to the left of the saturated liquid line represents

Superheated vapour region
Sub-cooled liquid region
None of the listed here
Wet vapour region

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

Very low
Low
High
Same

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is very wet vapour

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

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Refrigeration and Air Conditioning
In chemical dehumidification process,

All of these
Wet bulb temperature decreases
Dew point temperature decreases
Dry bulb temperature increases

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Refrigeration and Air Conditioning
The dry bulb temperature during sensible heating of air

Remains constant
Decreases
Increases
None of these

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MORE MCQ ON Refrigeration and Air Conditioning

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