Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Both A & B Lower capacity Lower economy Higher economy Both A & B Lower capacity Lower economy Higher economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer jH factor for heat transfer is not a function of the __________ number. Nusselt Both B & C Grashoff Reynolds Nusselt Both B & C Grashoff Reynolds 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 0.15 0.55 555 55.5 0.15 0.55 555 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equation, (NSt x N2/3Pr) = f/2, is the __________ analogy. Reynolds Colburn None of these Prandtl Reynolds Colburn None of these Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat transfer by conduction in a hollow cylinder, __________ mean area is used to calculate the heat transfer rate. Either A, B or C Geometric Logarithmic Arithmetic Either A, B or C Geometric Logarithmic Arithmetic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The number of kg vaporised per kg of steam fed to the evaporator is defined as Economy Rate of evaporation Rate of vaporisation Capacity Economy Rate of evaporation Rate of vaporisation Capacity ANSWER DOWNLOAD EXAMIANS APP
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