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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Chaperon equation is applicable for registration at

Saturation point of vapour
Triple point
Sublimation temperature
Saturation point of liquid

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Refrigeration and Air Conditioning
The material of pipe lines for a system using Freon as a refrigerant should be

Copper
Steel
Brass
Aluminium

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Refrigeration and Air Conditioning
If a gas is to be liquefied, its temperature must be

Equal to critical temperature
Reduced to a value below its critical temperature
None of these
Increased to a value above its critical temperature

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Refrigeration and Air Conditioning
Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system

Strong solution to ammonia vapour
Strong solution to weak solution
Weak solution to strong solution
Ammonia vapours to weak solution

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m²/hK
m/h
m²/h
m/hK

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Refrigeration and Air Conditioning
The humidification process, on the psychrometric chart is shown by

Vertical line
Horizontal line
Curved line
Inclined line

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MORE MCQ ON Refrigeration and Air Conditioning

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