Heat Transfer The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid Uneconomic LMTD Decrease in heat exchanger efficiency Its evaporation loss Excessive corrosion Uneconomic LMTD Decrease in heat exchanger efficiency Its evaporation loss Excessive corrosion ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Leidenfrost point is a term concerned with the Boiling of a liquid on a hot surface Condensation of the saturated vapor on a cold surface Heat transfer between two highly viscous liquids Concentration of a corrosive solution by evaporation Boiling of a liquid on a hot surface Condensation of the saturated vapor on a cold surface Heat transfer between two highly viscous liquids Concentration of a corrosive solution by evaporation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, the tube side heat transfer co-efficient just at the entrance of the tube is Zero Same as average heat transfer co-efficient for tube side Infinity None of these Zero Same as average heat transfer co-efficient for tube side Infinity None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the Less corrosion problems High heat transfer co-efficient Low pressure drop Flexibility possible in the baffle arrangement Less corrosion problems High heat transfer co-efficient Low pressure drop Flexibility possible in the baffle arrangement ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporation by thermocompression results in the Both A and B Realisation of multiple effect economy in a single effect None of these Saving of steam Both A and B Realisation of multiple effect economy in a single effect None of these Saving of steam ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the reciprocal of Thermal diffusivity x Momentum 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 ANSWER DOWNLOAD EXAMIANS APP
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