Heat Transfer The most conducive surface for dropwise condensation to occur is the __________ surface. Smooth Glazed & polished Oily Coated Smooth Glazed & polished Oily Coated ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Surface tension of water Nature of heating surface and distribution of bubbles All of these Viscosity of water Surface tension of water Nature of heating surface and distribution of bubbles All of these Viscosity of water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface) K/h0 h0/K 2K/h0 h0/2K K/h0 h0/K 2K/h0 h0/2K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate. May increase or decrease, depends on the type of baffle Decreases Increases Does not affect May increase or decrease, depends on the type of baffle Decreases Increases Does not affect ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? When fluid flows past a smooth surface None of these At low velocity At high fluid velocity When fluid flows past a smooth surface None of these At low velocity At high fluid velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Shell side pressure drop in a shell and tube heat exchanger does not depend upon the 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 Viscosity, density & mass velocity of shell side fluid ANSWER DOWNLOAD EXAMIANS APP
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