Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is Very wet vapour Dry vapour Wet vapour High pressure saturated liquid Very wet vapour Dry vapour Wet vapour High pressure saturated liquid 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)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 O.P.)R + 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as Mean radiant temperature None of the listed here Effective temperature Dew point temperature Mean radiant temperature None of the listed here Effective temperature Dew point temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be Dirty condenser surface Lack of cooling water Water temperature being high All of these Dirty condenser surface Lack of cooling water Water temperature being high All of these 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 capillary tube, as an expansion device, is used in All of these Domestic refrigerators Room air conditioners Water coolers All of these Domestic refrigerators Room air conditioners Water coolers ANSWER DOWNLOAD EXAMIANS APP
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