Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Minimum resistance presents in the series Sum of all resistances Average of all resistances Maximum resistance in the series Minimum resistance presents in the series Sum of all resistances Average of all resistances Maximum resistance in the series ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it Increases the overall heat transfer coefficient None of these Decreases the outlet temperature of cooling medium Decreases the pressure drop Increases the overall heat transfer coefficient None of these Decreases the outlet temperature of cooling medium Decreases the pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as (D)1.8 (D)-0.2 (D)0.2 (D)-1.8 (D)1.8 (D)-0.2 (D)0.2 (D)-1.8 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area Remains constant Increases Decreases Passes through a maxima Remains constant Increases Decreases Passes through a maxima ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An equipment which converts the latent or sensible heat of one fluid into the latent heat of vaporisation of another, is called a regenerator boiler heat exchanger recuperator regenerator boiler heat exchanger recuperator 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 Existence of thermal boundary layer Temperature gradient produced due to density difference Buoyancy of the bubbles produced at active nucleation site None of these Existence of thermal boundary layer Temperature gradient produced due to density difference Buoyancy of the bubbles produced at active nucleation site ANSWER DOWNLOAD EXAMIANS APP
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