Heat Transfer Which of the following forced convection heat transfer equation accounts for the liquid viscosity effect for viscous liquids? Sieder-Tate equation None of these Dittus-Boeltier equation Nusselt equation Sieder-Tate equation None of these Dittus-Boeltier equation Nusselt equation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the absorptivity of a black body? 1 0.95 0.78 1 0.95 0.78 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Increases Decreases Increases exponentially Remains unchanged Increases Decreases Increases exponentially Remains unchanged 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 All of these Rate of heat transfer Flow velocity Turbulence of shell side fluid All of these Rate of heat transfer Flow velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator depends upon the Rate of heat transfer Both A and B Heat balance consideration Neither A nor B Rate of heat transfer Both A and B Heat balance consideration Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. Backward feed High pressure None of these Vacuum Backward feed High pressure None of these Vacuum ANSWER DOWNLOAD EXAMIANS APP
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