Heat Transfer Reason for operating an evaporator in multiple effect is to secure Both A and B Increased capacity Increased steam economy Decreased steam consumption Both A and B Increased capacity Increased steam economy Decreased steam consumption ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) 2hi/K K/h0 2K/h0 hi/K 2hi/K K/h0 2K/h0 hi/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The advantage of backward feed multiple effect evaporators over forward feed units is that Most concentrated liquid is at highest temperature There is no additional cost of pumping Equal heat transfer co-efficients exist in various effects Heat sensitive material can be handled Most concentrated liquid is at highest temperature There is no additional cost of pumping Equal heat transfer co-efficients exist in various effects Heat sensitive material can be handled ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as (D)-1.8 (D)0.2 (D)1.8 (D)-0.2 (D)-1.8 (D)0.2 (D)1.8 (D)-0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number. Condensation Grashoff Stantan Brinkman Condensation Grashoff Stantan Brinkman ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer co-efficient is 3k/l. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade? 48.25 43.75 81.25 35.5 48.25 43.75 81.25 35.5 ANSWER DOWNLOAD EXAMIANS APP
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