Heat Transfer Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second. 3 x l05 3 x l08 3 x l010 3 x l012 3 x l05 3 x l08 3 x l010 3 x l012 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 Gives a higher shell side pressure drop Can pack more surface area into a shell of given diameter Gives a lower shell side pressure drop None of these Gives a higher shell side pressure drop Can pack more surface area into a shell of given diameter ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The overall heat transfer co-efficient for a shell and tube heat exchanger for clean surfaces is U0 = 400 W/m².K. The fouling factor after one year of operation is found to be hd0 = 2000 W/m².K. The overall heat transfer co-efficient at this time is 1200W/m².K 333W/m².K 287 W/m².K 894W/m².K 1200W/m².K 333W/m².K 287 W/m².K 894W/m².K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is Nusselt number Schmidt number Stanton number Sherwood number Nusselt number Schmidt number Stanton number Sherwood number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporation by thermocompression results in the Realisation of multiple effect economy in a single effect Saving of steam None of these Both A and B Realisation of multiple effect economy in a single effect Saving of steam None of these Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is Uniformly distributed throughout the fluid Mainly confined to a thin film of fluid near the surface None of these In the central core of the fluid Uniformly distributed throughout the fluid Mainly confined to a thin film of fluid near the surface None of these In the central core of the fluid ANSWER DOWNLOAD EXAMIANS APP
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