Refrigeration and Air Conditioning Allowable pressure on high pressure side or ammonia absorption system is of the order of Slightly above atmospheric pressure Atmospheric pressure 56 bars 24 bars Slightly above atmospheric pressure Atmospheric pressure 56 bars 24 bars ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating pressure for refrigerating units using R-12 as a refrigerant is 15 bar 2 bar 30 bar 8 bar 15 bar 2 bar 30 bar 8 bar 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 18.6 kW 3.72 kW 7.44 kW 1.86 kW 18.6 kW 3.72 kW 7.44 kW 1.86 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following statement is correct? The wet bulb temperature is a measure of enthalpy of moist air The wet bulb and dry bulb temperature are equal at saturation condition The constant enthalpy lines are also constant wet bulb temperature lines All of the listed here The wet bulb temperature is a measure of enthalpy of moist air The wet bulb and dry bulb temperature are equal at saturation condition The constant enthalpy lines are also constant wet bulb temperature lines All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere? Sulphur dioxide Carbon dioxide Fluorine Ammonia Sulphur dioxide Carbon dioxide Fluorine Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The advantage of dry compression is that All of these It results in high volumetric and mechanical efficiency It permits higher speeds to be used It permits complete evaporation in the evaporator All of these It results in high volumetric and mechanical efficiency It permits higher speeds to be used It permits complete evaporation in the evaporator ANSWER DOWNLOAD EXAMIANS APP
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