Heat Transfer Heat exchanger tubes are never made of Stainless steel Lead Copper Plain carbon steel Stainless steel Lead Copper Plain carbon steel ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the absorptivity of a black body? 0.78 0.95 1 0.78 0.95 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Minimum resistance presents in the series Average of all resistances Maximum resistance in the series Sum of all resistances Minimum resistance presents in the series Average of all resistances Maximum resistance in the series Sum of all resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum thermal conductivity? Carbon black Steel Nitrogen Tar Carbon black Steel Nitrogen Tar ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 'Duhring's plot' is of use in Extractive distillation Leaching Evaporation Absorption Extractive distillation Leaching Evaporation Absorption ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions ? Assume that the conductive heat transfer co-efficient is infinitely large. 10 minutes 20 minutes 5 minutes 40 minutes 10 minutes 20 minutes 5 minutes 40 minutes ANSWER DOWNLOAD EXAMIANS APP
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