Heat Transfer When warm and cold liquids are mixed, the heat transfer is mainly by convection radiation none of the listed here conduction convection radiation none of the listed here conduction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it Is more economical Is easy to operate and maintain Occupies smaller space All of these Is more economical Is easy to operate and maintain Occupies smaller space All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Convective heat transfer co-efficient in case of fluid flowing in tubes is not affected by the tube length/diameter ratio, if the flow is in the __________ zone. laminar highly turbulent None of the listed here transition laminar highly turbulent None of the listed here transition ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is 1-1 heat exchanger 1-2 heat exchanger 2-4 heat exchanger 3-2 heat exchanger 1-1 heat exchanger 1-2 heat exchanger 2-4 heat exchanger 3-2 heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Shell side pressure drop in a shell and tube heat exchanger does not depend upon the Viscosity, density & mass velocity of shell side fluid Baffle spacing & shell diameter None of these Tube diameter & pitch Viscosity, density & mass velocity of shell side fluid Baffle spacing & shell diameter None of these Tube diameter & pitch ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 Nu = 2Gz0.5 Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 Nu = 2Gz0.5 ANSWER DOWNLOAD EXAMIANS APP
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