Heat Transfer In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred By direct contact of hot flue gas with air None of these Through a metallic wall By heating an intermediate material (like chequor bricks) and then heating the air from this hot material By direct contact of hot flue gas with air None of these Through a metallic wall By heating an intermediate material (like chequor bricks) and then heating the air from this hot material ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Convective heat transfer, in which heat is transferred by movement of warmed matter is described by Fourier's law Fick's law Newton's law of cooling None of these Fourier's law Fick's law Newton's law of cooling None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer All analogy equations connecting friction factor and heat transfer co-efficient apply only to Wall or skin friction Form friction Both A and B Turbulent flow Wall or skin friction Form friction Both A and B Turbulent flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Open pan evaporators are preferred to be used, when the solution to be concentrated is Highly viscous Salty Scaling Corrosive Highly viscous Salty Scaling Corrosive ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are Different Same Linearly related Never different Different Same Linearly related Never different ANSWER DOWNLOAD EXAMIANS APP
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-1/3 NPr NPr1/3 NPr-1 NPr-1/3 NPr NPr1/3 NPr-1 ANSWER DOWNLOAD EXAMIANS APP
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