Refrigeration and Air Conditioning If a gas is to be liquefied, its temperature must be 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 Equal to critical temperature Increased to a value above its critical temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Cooling water is required for following equipment in ammonia absorption plant Evaporator Absorber Condenser, absorber and separator (rectifier) Condenser Evaporator Absorber Condenser, absorber and separator (rectifier) Condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle the condition off refrigerant is dry saturated vapour Before entering the compressor After passing through the condenser Before passing through the condenser After passing through the expansion or throttle valve Before entering the compressor After passing through the condenser Before passing through the condenser After passing through the expansion or throttle valve 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 be higher May be higher or lower depending upon the nature of non-condensable gases Will be lower Will remain unaffected Will be higher May be higher or lower depending upon the nature of non-condensable gases Will be lower Will remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning R-12 is generally preferred over R-22 in deep freezers since All of these It gives higher coefficient of performance It is miscible with oil over large range of temperatures It has low operating pressures All of these It gives higher coefficient of performance It is miscible with oil over large range of temperatures It has low operating pressures ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In case of sensible cooling of air, the coil efficiency is given by 1 - B.P.F. 1 + B.P.F. 1/ B.P.F. P.F. - 1 1 - B.P.F. 1 + B.P.F. 1/ B.P.F. P.F. - 1 ANSWER DOWNLOAD EXAMIANS APP
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