Heat Transfer Heat transfer rate per unit area is called thermal conductivity heat flux thermal diffusivity heat transfer co-efficient thermal conductivity heat flux thermal diffusivity heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer co-efficient (h1) for liquids increases with Decreasing temperature Decreasing Reynolds number None of these Increasing temperature Decreasing temperature Decreasing Reynolds number None of these Increasing temperature 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)-0.2 (D)-1.8 (D)1.8 (D)0.2 (D)-0.2 (D)-1.8 (D)1.8 (D)0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Nature of heating surface and distribution of bubbles Surface tension of water Viscosity of water All of these Nature of heating surface and distribution of bubbles Surface tension of water Viscosity of water All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A composite flat wall of a furnace is made of two materials 'A' and 'B'. The thermal conductivity of 'A' is twice of that of material 'B', while the thickness of layer of 'A' is half that of B. If the temperature at the two sides of the wall are 400 and 1200°K, then the temperature drop (in °K) across the layer of material 'A' is 125 160 133 150 125 160 133 150 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger? Viscosity Density Corrosiveness & fouling characteristics Pressure Viscosity Density Corrosiveness & fouling characteristics Pressure ANSWER DOWNLOAD EXAMIANS APP