Heat Transfer The average heat transfer co-efficient for laminar film condensation on vertical surface is inversely proportional to (where, ΔT = Temperature drop across condensate film ) None of the listed here ΔT (ΔT)2 (ΔT)1/4 None of the listed here ΔT (ΔT)2 (ΔT)1/4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Viscous & heat sensitive liquids are concentrated in __________ evaporators. Open pan Agitated film None of these Long tube Open pan Agitated film None of these Long tube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it All of these Is more economical Occupies smaller space Is easy to operate and maintain All of these Is more economical Occupies smaller space Is easy to operate and maintain ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have A porous structure High thermal conductivity Low thermal conductivity Less resistance to heat flow A porous structure High thermal conductivity Low thermal conductivity Less resistance to heat flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In the equation Q = UAΔt; Δt is Geometric mean temperature difference Arithmetic mean temperature difference Logarithmic mean temperature difference The difference of average bulk temperatures of hot and cold fluids Geometric mean temperature difference Arithmetic mean temperature difference Logarithmic mean temperature difference The difference of average bulk temperatures of hot and cold fluids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a forward feed multiple effect evaporator unit Transfer from effect to effect is done by pumps Viscosity of liquid is highest in first effect None of these No pump is required to withdraw the product from the last effect Transfer from effect to effect is done by pumps Viscosity of liquid is highest in first effect None of these No pump is required to withdraw the product from the last effect ANSWER DOWNLOAD EXAMIANS APP
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