Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Dense structure High viscosity Low density Partial ionisation Dense structure High viscosity Low density Partial ionisation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vacuum is generally maintained in the vapour space of an evaporator mainly to Facilitate forward feeding in multiple effect evaporation Get economical temperature difference by using moderate pressure steam Achieve very high concentration of the final product Concentrate heat sensitive materials Facilitate forward feeding in multiple effect evaporation Get economical temperature difference by using moderate pressure steam Achieve very high concentration of the final product Concentrate heat sensitive materials ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area Passes through a maxima Increases Remains constant Decreases Passes through a maxima Increases Remains constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The number of kg vaporised per kg of steam fed to the evaporator is defined as Economy Capacity Rate of evaporation Rate of vaporisation Economy Capacity Rate of evaporation Rate of vaporisation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its High proportion of air space High specific heat Dense structure None of these High proportion of air space High specific heat Dense structure None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is Finned tube heat exchanger with air inside and steam outside Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air inside tubes and steam on shell side Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air inside and steam outside Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air inside tubes and steam on shell side Shell and tube heat exchanger with air on shell side and steam inside tubes ANSWER DOWNLOAD EXAMIANS APP
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