Refrigeration and Air Conditioning If a gas is to be liquefied, its temperature must be Increased to a value above its critical temperature Reduced to a value below its critical temperature Equal to critical temperature None of these Increased to a value above its critical temperature Reduced to a value below its critical temperature Equal to critical temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Absorption system normally uses the following refrigerant Freon-22 CO2 Ammonia Freon-11 Freon-22 CO2 Ammonia Freon-11 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will May increase or decrease depending on the type of refrigerant used Increase Decrease Remain unaffected May increase or decrease depending on the type of refrigerant used Increase Decrease Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Aqua ammonia is used as refrigerant in the following type of refrigeration system Indirect Absorption Direct Compression Indirect Absorption Direct Compression ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature Which lies between the wet bulb and dew point temperatures of the incoming stream Which lies between the dry bulb and wet bulb temperatures of the incoming stream Which is lower than the dew point temperature of the incoming stream Of adiabatic saturation of incoming stream Which lies between the wet bulb and dew point temperatures of the incoming stream Which lies between the dry bulb and wet bulb temperatures of the incoming stream Which is lower than the dew point temperature of the incoming stream Of adiabatic saturation of incoming stream ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The dry bulb temperature lines, on the psychrometric chart are Horizontal and non-uniformly spaced Horizontal and uniformly spaced Curved lines Vertical and uniformly spaced Horizontal and non-uniformly spaced Horizontal and uniformly spaced Curved lines Vertical and uniformly spaced ANSWER DOWNLOAD EXAMIANS APP