Refrigeration and Air Conditioning The formation of frost on cooling coils in a refrigerator Reduces power consumption Improves C.O.P. of the system Increases power consumption Increases heat transfer Reduces power consumption Improves C.O.P. of the system Increases power consumption Increases heat transfer ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Vapour compression refrigeration is somewhat like Reversed Carnot cycle Carnot cycle None of these Reversed Carnot cycle Carnot cycle None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a bootstrap air evaporative cooling system, the evaporator is provided Between the first heat exchanger and the secondary compressor Between the combustion chamber and the first heat exchanger Between the second heat exchanger and the cooling turbine Between the secondary compressor and the second heat exchanger Between the first heat exchanger and the secondary compressor Between the combustion chamber and the first heat exchanger Between the second heat exchanger and the cooling turbine Between the secondary compressor and the second heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The humidification process, on the psychrometric chart is shown by Inclined line Vertical line Curved line Horizontal line Inclined line Vertical line Curved line Horizontal line ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference (tm) for parallel flow is ________ that for counter flow. Equal to None of these Less than Greater than Equal to None of these Less than Greater than 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
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