Refrigeration and Air Conditioning Moisture in Freon refrigeration system causes Freezing automatic regulating valve Corrosion of whole system High power consumption Ineffective refrigeration Freezing automatic regulating valve Corrosion of whole system High power consumption Ineffective refrigeration 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 7.44 kW 18.6 kW 3.72 kW 1.86 kW 7.44 kW 18.6 kW 3.72 kW 1.86 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The temperature of air recorded by a thermometer, when it is not affected by the moisture present in the air, is called Dew point temperature Dry bulb temperature Wet bulb temperature None of these Dew point temperature Dry bulb temperature Wet bulb temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle, the condition of refrigerant is very wet vapour After passing through the condenser Before entering the compressor Before passing through the condenser After passing through the expansion or throttle valve After passing through the condenser Before entering the compressor Before passing through the condenser After passing through the expansion or throttle valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called Normal cooling None of the listed here Super-cooling Sub-cooling or under-cooling Normal cooling None of the listed here Super-cooling Sub-cooling or under-cooling 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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