Heat and Mass Transfer The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to Stanton number Peclet number Grashoff number Biot number Stanton number Peclet number Grashoff number Biot number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is smallest in Gases Liquids Solids None of these Gases Liquids Solids None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of glass wool varies from sample to sample because of variation in Density Composition All of these Porosity Density Composition All of these Porosity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following is a case of steady state heat transfer? Heating of building in winter None of these I.C. engine Air preheaters Heating of building in winter None of these I.C. engine Air preheaters ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body) k. (dT/dx) k. (dx/dT) k. (dx/dT) (dT/dx) k. k. (dT/dx) k. (dx/dT) k. (dx/dT) (dT/dx) k. ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Reynolds number is the ratio of None of these Inertia force to viscous force Kinematic viscosity to thermal diffusivity Energy transferred by convection to that by conduction None of these Inertia force to viscous force Kinematic viscosity to thermal diffusivity Energy transferred by convection to that by conduction ANSWER DOWNLOAD EXAMIANS APP
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