Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is 88.66 Dependent on NRe only 1.66 3.66 88.66 Dependent on NRe only 1.66 3.66 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 'Duhring's plot' is of use in Extractive distillation Absorption Leaching Evaporation Extractive distillation Absorption Leaching Evaporation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The advantage of backward feed multiple effect evaporators over forward feed units is that Equal heat transfer co-efficients exist in various effects There is no additional cost of pumping Heat sensitive material can be handled Most concentrated liquid is at highest temperature Equal heat transfer co-efficients exist in various effects There is no additional cost of pumping Heat sensitive material can be handled Most concentrated liquid is at highest temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case, Both B & C The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant Both will absorb equal amount of radiation from the surrounding in the beginning Both the spheres will emit equal amount of radiation per unit time in the beginning Both B & C The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant Both will absorb equal amount of radiation from the surrounding in the beginning Both the spheres will emit equal amount of radiation per unit time in the beginning ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger? Corrosiveness & fouling characteristics Density Viscosity Pressure Corrosiveness & fouling characteristics Density Viscosity Pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased. Velocity of circulation Liquor-film co-efficient Both A and B Neither A and B Velocity of circulation Liquor-film co-efficient Both A and B Neither A and B ANSWER DOWNLOAD EXAMIANS APP
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