Refrigeration and Air Conditioning The temperature of ammonia after compression in a vapour compression system is None of these 20 to 50°C 70 to 110°C 50 to 70°C None of these 20 to 50°C 70 to 110°C 50 to 70°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases, Will remain unaffected Will be lower Will be higher May be higher or lower depending upon the nature of non-condensable gases Will remain unaffected Will be lower Will be higher May be higher or lower depending upon the nature of non-condensable gases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by O.P.)R + 1 O.P)P = ( O.P.)P = ( O.P)R - 1 ( ( ( ( O.P)R O.P.)P = ( O.P)P = ( O.P.)R + 2 O.P.)R + 1 O.P)P = ( O.P.)P = ( O.P)R - 1 ( ( ( ( O.P)R O.P.)P = ( O.P)P = ( O.P.)R + 2 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The alignment circle is marked on the psychrometric chart at 26°C DBT and 50% RH 20°C DBT and 50% RH 20°C DBT and 60% RH 26°C DBT and 60% RH 26°C DBT and 50% RH 20°C DBT and 50% RH 20°C DBT and 60% RH 26°C DBT and 60% RH ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If a gas is to be liquefied, its temperature must be Increased to a value above its critical temperature Equal to critical temperature Reduced to a value below its critical temperature None of these Increased to a value above its critical temperature Equal to critical temperature Reduced to a value below its critical temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be 4 kW 2 kW 1 kW 3 kW 4 kW 2 kW 1 kW 3 kW ANSWER DOWNLOAD EXAMIANS APP
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