Heat Transfer For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number) NPr-1 NPr NPr-1/3 NPr1/3 NPr-1 NPr NPr-1/3 NPr1/3 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 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 None of these Temperature gradient produced due to density difference ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, floating head is used for Less corrosion of tubes Large temperature differentials High heat transfer co-efficient Low pressure drop Less corrosion of tubes Large temperature differentials High heat transfer co-efficient Low pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ equation relates the thermal conductivity of a solid to its temperature. Antonie Kopp's Lee's Kistyakowski Antonie Kopp's Lee's Kistyakowski ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Increases exponentially Increases Remains unchanged Decreases Increases exponentially Increases Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A multiple effect evaporator as compared to a single effect evaporator of the same capacity has Higher solute concentration in the product Lower heat transfer area Higher steam economy Lower steam economy Higher solute concentration in the product Lower heat transfer area Higher steam economy Lower steam economy ANSWER DOWNLOAD EXAMIANS APP
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