Refrigeration and Air Conditioning In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor) 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
Refrigeration and Air Conditioning The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases, May be higher or lower depending upon the nature of non-condensable gases Will be lower Will remain unaffected Will be higher May be higher or lower depending upon the nature of non-condensable gases Will be lower Will remain unaffected Will be higher 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 R-12 is generally preferred over R-22 in deep freezers since It gives higher coefficient of performance It is miscible with oil over large range of temperatures All of these It has low operating pressures It gives higher coefficient of performance It is miscible with oil over large range of temperatures All of these It has low operating pressures ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant for a refrigerator should have High latent heat High sensible heat High total heat Low latent heat High latent heat High sensible heat High total heat Low latent heat ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The lowest temperature during the cycle in a vapour compression system occurs after Expansion Compression Evaporation Condensation Expansion Compression Evaporation Condensation ANSWER DOWNLOAD EXAMIANS APP
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