Heat Transfer Finned tube heat exchangers give larger area per tube are used for smaller heat load facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity give larger area per tube are used for smaller heat load facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, the tube side heat transfer co-efficient just at the entrance of the tube is None of these Infinity Same as average heat transfer co-efficient for tube side Zero None of these Infinity Same as average heat transfer co-efficient for tube side Zero ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Forced convection and conduction Free and forced convection Conduction only Forced convection only Forced convection and conduction Free and forced convection Conduction only Forced convection only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Sensible heat of hot industrial flue gases can not be recovered by a/an None of these Regenerator Ceramic recuperator Economiser None of these Regenerator Ceramic recuperator Economiser ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the None of these Temperature gradient produced due to density difference Existence of thermal boundary layer Buoyancy of the bubbles produced at active nucleation site None of these Temperature gradient produced due to density difference Existence of thermal boundary layer Buoyancy of the bubbles produced at active nucleation site ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In an extended surface heat exchanger, fluid having lower co-efficient Flows outside the tubes Can flow either inside or outside the tubes Flows through the tube Should not be used as it gives very high pressure drop Flows outside the tubes Can flow either inside or outside the tubes Flows through the tube Should not be used as it gives very high pressure drop ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS