Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Decrease May increase or decrease; depends on the pressure Remain unchanged Increase Decrease May increase or decrease; depends on the pressure Remain unchanged Increase ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Open pan evaporators are preferred to be used, when the solution to be concentrated is Salty Scaling Highly viscous Corrosive Salty Scaling Highly viscous Corrosive ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal wire of 0.01 m dia and thermal conductivity 200 W/m.K is exposed to a fluid stream with a convective heat transfer coefficient of 100 W/m².K. The Biot number is 3.5 5.6 0.0035 0.025 3.5 5.6 0.0035 0.025 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Use of transverse baffles in a shell and tube heat exchanger is done to increase the Turbulence of shell side fluid Flow velocity All of these Rate of heat transfer Turbulence of shell side fluid Flow velocity All of these Rate of heat transfer ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number. Brinkman Grashoff Stantan Condensation Brinkman Grashoff Stantan Condensation 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 160 150 125 133 160 150 125 133 ANSWER DOWNLOAD EXAMIANS APP
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