Refrigeration and Air Conditioning The sub-cooling in a refrigeration cycle None of these Increases C.O.P. Does not alter C.O.P. Decreases C.O.P. None of these Increases C.O.P. Does not alter C.O.P. Decreases C.O.P. 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. Greater than Less than Equal to None of these Greater than Less than Equal to None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During sensible cooling of air, specific humidity None of the listed here Remains constant Increases Decreases None of the listed here Remains constant Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bypass factor for a cooling coil May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Decreases with increase in velocity of air passing through it Increases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Decreases with increase in velocity of air passing through it Increases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be 0.2 5 1.2 6 0.2 5 1.2 6 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 complete evaporation in the evaporator It permits higher speeds to be used All of these It results in high volumetric and mechanical efficiency It permits complete evaporation in the evaporator It permits higher speeds to be used ANSWER DOWNLOAD EXAMIANS APP
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