Heat Transfer Forced circulation evaporators are normally used for concentrating liquids having High viscosity Neither A nor B Scaling characteristics Both A & B High viscosity Neither A nor B Scaling characteristics Both A & B 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 160 125 150 133 160 125 150 133 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of an ideal solution In independent of pressure Decreases rapidly with temperature rise Both B and C Increases rapidly with temperature rise In independent of pressure Decreases rapidly with temperature rise Both B and C Increases rapidly with temperature rise ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is Both B and C Thick walled Having the value of Ao/Ai > 2 Thin walled having the value of Ao Ai/< 2 Both B and C Thick walled Having the value of Ao/Ai > 2 Thin walled having the value of Ao Ai/< 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Lower capacity Higher economy Both A & B Lower economy Lower capacity Higher economy Both A & B Lower economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the reciprocal of Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Mass diffusivity Mass diffusivity x Momentum diffusivity Thermal diffusivity x Momentum Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Mass diffusivity Mass diffusivity x Momentum diffusivity Thermal diffusivity x Momentum ANSWER DOWNLOAD EXAMIANS APP
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