Heat Transfer A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. >10 Either B or C, depends on the mass of the body 10 >10 Either B or C, depends on the mass of the body 10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vacuum is generally maintained in the vapour space of an evaporator mainly to Achieve very high concentration of the final product Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Concentrate heat sensitive materials Achieve very high concentration of the final product Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Concentrate heat sensitive materials ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch Gives a lower shell side pressure drop None of these Can pack more surface area into a shell of given diameter Gives a higher shell side pressure drop Gives a lower shell side pressure drop None of these Can pack more surface area into a shell of given diameter Gives a higher shell side pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Viscosity of water Nature of heating surface and distribution of bubbles Surface tension of water All of these Viscosity of water Nature of heating surface and distribution of bubbles Surface tension of water All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer jH factor for heat transfer depends upon the __________ number. Biot Reynolds Prandtl Nusselt Biot Reynolds Prandtl Nusselt ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The overall resistance for heat transfer through a series of flat resistance, is the __________ of the resistances. Sum Geometric mean Product Average Sum Geometric mean Product Average ANSWER DOWNLOAD EXAMIANS APP
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