Refrigeration and Air Conditioning Which of the following refrigerants has lowest freezing point? NH3 Freon-22 CO2 Freon-12 NH3 Freon-22 CO2 Freon-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a domestic vapour compression refrigerator, the refrigerant commonly used is CO? R-12 All of these Ammonia CO? R-12 All of these Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The Freon group of refrigerants are Inorganic refrigerants Zoetrope refrigerants Hydrocarbon refrigerants Halocarbon refrigerants Inorganic refrigerants Zoetrope refrigerants Hydrocarbon refrigerants Halocarbon refrigerants ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The sensible heat factor during the heating and humidification process is given by (where h₁ = Enthalpy of air entering the heating coil, h₂ = Enthalpy of air leaving the heating coil, and hA = Enthalpy of air at the end of humidification process) (h1 - h2)/ (hA - h2) (h2 - hA)/ (h1 - h2) (hA - h2)/ (h1 - h2) (hA - h1)/ (h2 - h1) (h1 - h2)/ (hA - h2) (h2 - hA)/ (h1 - h2) (hA - h2)/ (h1 - h2) (hA - h1)/ (h2 - h1) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle the condition of refrigerant is superheated vapour Before entering the expansion valve Before passing through the condenser After passing through the expansion or throttle valve After passing through the condenser Before entering the expansion valve Before passing through the condenser After passing through the expansion or throttle valve After passing through the condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is 3.72 kW 18.6 kW 1.86 kW 7.44 kW 3.72 kW 18.6 kW 1.86 kW 7.44 kW ANSWER DOWNLOAD EXAMIANS APP
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