Heat Transfer If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will Increase by 1.8 times Increase by 216 Decrease by 22 Remain unchanged Increase by 1.8 times Increase by 216 Decrease by 22 Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law applies to the heat transfer by conduction radiation convection None of the listed here conduction radiation convection None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) ∝ 1/t ∝ t Independent of 't' ∝ √t ∝ 1/t ∝ t Independent of 't' ∝ √t 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. Decreases Does not affect May increase or decrease, depends on the type of baffle Increases Decreases Does not affect May increase or decrease, depends on the type of baffle Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Volume to surface area Surface area to perimeter Surface area to volume Perimeter to surface area Volume to surface area Surface area to perimeter Surface area to volume Perimeter to surface area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer. Reynolds Biot Stantan Grashoff Reynolds Biot Stantan Grashoff ANSWER DOWNLOAD EXAMIANS APP
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