Refrigeration and Air Conditioning The desirable property of a refrigerant is High latent heat of vaporisation High critical temperature Low boiling point All of these High latent heat of vaporisation High critical temperature Low boiling point All of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice In 1 hour In 1 minute In 24 hours In 12 hours In 1 hour In 1 minute In 24 hours In 12 hours ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning While designing the refrigeration system of an aircraft, the prime consideration is that the System has high C.O.P. Mass of the refrigeration equipment is low Power per TR is low Mass of refrigerant circulated in the system is low System has high C.O.P. Mass of the refrigeration equipment is low Power per TR is low Mass of refrigerant circulated in the system is low ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a refrigeration cycle, the flow of refrigerant is controlled by Expansion valve Evaporator Compressor Condenser Expansion valve Evaporator Compressor Condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If a gas is to be liquefied, its temperature must be Equal to critical temperature Increased to a value above its critical temperature Reduced to a value below its critical temperature None of these Equal to critical temperature Increased to a value above its critical temperature Reduced to a value below its critical temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature) T₂/ (T₂ - T₁) (T₂ - T₁)/T₁ T₁ / (T₂ - T₁) (T₁ - T₂)/T₁ T₂/ (T₂ - T₁) (T₂ - T₁)/T₁ T₁ / (T₂ - T₁) (T₁ - T₂)/T₁ ANSWER DOWNLOAD EXAMIANS APP
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