Heat Transfer For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is Backward Forward None of these Parallel Backward Forward None of these Parallel ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film thickness for laminar film condensation on vertical surface __________ from top to bottom. Remains constant Cummulatively decreases Cummulatively increases And the surface conductance increase Remains constant Cummulatively decreases Cummulatively increases And the surface conductance increase ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m³ and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m².K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is 0.55 55.5 0.15 555 0.55 55.5 0.15 555 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The main purpose of providing fins on heat transfer surface is to increase the Heat transfer co-efficient Temperature gradient Heat transfer area Mechanical strength of the equipment Heat transfer co-efficient Temperature gradient Heat transfer area Mechanical strength of the equipment ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low Grashoff number viscosity Prandtl number thermal conductivity Grashoff number viscosity Prandtl number thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid Increases or decreases depending on number of shell passes Remains unchanged Decreases Increases Increases or decreases depending on number of shell passes Remains unchanged Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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