Heat Transfer Viscous & heat sensitive liquids are concentrated in __________ evaporators. Agitated film Long tube None of these Open pan Agitated film Long tube None of these Open pan ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film boiling is usually not desired in commercial equipments, because none of the listed here it is difficult to maintain the heat transfer rate is low in view of the large temperature drop. @ it is not economic none of the listed here it is difficult to maintain the heat transfer rate is low in view of the large temperature drop. @ it is not economic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Baffle spacing None of these Is not the same as baffle pitch Should be less than the inside diameter of the shell Should be less than one fifth the diameter of the shell None of these Is not the same as baffle pitch Should be less than the inside diameter of the shell Should be less than one fifth the diameter of the shell ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For condensation of pure vapors, if the heat transfer co-efficients in filmwise and drop-wise condensation are respectively hf and hd, then hf could be greater or smaller than hd hf > hd hf = hd hf < hd hf could be greater or smaller than hd hf > hd hf = hd hf < hd ANSWER DOWNLOAD EXAMIANS APP
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 1.66 3.66 Dependent on NRe only 88.66 1.66 3.66 Dependent on NRe only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m³ and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m².K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is 55.5 0.55 0.15 555 55.5 0.55 0.15 555 ANSWER DOWNLOAD EXAMIANS APP
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