Heat Transfer Vacuum is generally maintained in the vapour space of an evaporator mainly to Get economical temperature difference by using moderate pressure steam Concentrate heat sensitive materials Facilitate forward feeding in multiple effect evaporation Achieve very high concentration of the final product Get economical temperature difference by using moderate pressure steam Concentrate heat sensitive materials Facilitate forward feeding in multiple effect evaporation Achieve very high concentration of the final product ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A multiple effect evaporator has a capacity to process 4000 kg of solid caustic soda per day, when it is concentrating from 10% to 25% solids. The water evaporated in kg per day is 48000 24000 6000 60000 48000 24000 6000 60000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of floating head in a heat exchanger is to Avoid buckling of tubes Facilitate its lengthening, if needed Decrease the pressure drop Provide support for tubes Avoid buckling of tubes Facilitate its lengthening, if needed Decrease the pressure drop Provide support for tubes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An ejector is used to Increase temperature Increase pressure None of these Remove condensate Increase temperature Increase pressure None of these Remove condensate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used In low range of temperature differences Because of its low cost To prevent corrosion of the tube bundles In high range of temperature differences In low range of temperature differences Because of its low cost To prevent corrosion of the tube bundles In high range of temperature differences ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the ratio of Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Momentum diffusivity to mass diffusivity Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Momentum diffusivity to mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
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