Refrigeration and Air Conditioning A good refrigerant should have Low C.O.P. and low freezing point High operating pressures and low freezing point High specific volume and high latent heat of vaporisation High latent heat of vaporisation and low freezing point Low C.O.P. and low freezing point High operating pressures and low freezing point High specific volume and high latent heat of vaporisation High latent heat of vaporisation and low freezing point ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following statement is wrong? The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour None of the listed here The value of C.O.P. is always greater than one The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour None of the listed here The value of C.O.P. is always greater than one ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression cycle, the refrigerant immediately after expansion valve is Sub-cooled liquid Wet vapour Saturated liquid Liquid Sub-cooled liquid Wet vapour Saturated liquid Liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Highest pressure encountered in a refrigeration system should be Near critical pressure Much above critical pressure Much below critical pressure Critical pressure of refrigerant Near critical pressure Much above critical pressure Much below critical pressure Critical pressure of refrigerant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The mass of water vapour present in __________ is called absolute humidity. 1 m3 of dry air 1 kg of wet air 1 kg of dry air 1 m3 of water 1 m3 of dry air 1 kg of wet air 1 kg of dry air 1 m3 of water ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pressure of water vapour is given by μ/[1 - (1 - μ) (Ps/Pb)] [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] None of these 0.622 Pv/ (Pb - Pv) μ/[1 - (1 - μ) (Ps/Pb)] [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] None of these 0.622 Pv/ (Pb - Pv) ANSWER DOWNLOAD EXAMIANS APP
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