Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law. Linear Logarithmic Parabolic Hyperbolic Linear Logarithmic Parabolic Hyperbolic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 2-4 heat exchanger involves Both counter and parallel-flow of the fluids Only counter-flow of fluids Smaller pressure drop compared to 1-2 exchanger Only parallel-flow of fluids Both counter and parallel-flow of the fluids Only counter-flow of fluids Smaller pressure drop compared to 1-2 exchanger Only parallel-flow of fluids 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. 40 minutes 5 minutes 20 minutes 10 minutes 40 minutes 5 minutes 20 minutes 10 minutes 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 Which is the most suitable for the concentration of foamy & frothy liquors? None of these Agitated film evaporator Long tube vertical evaporator Open pan evaporator None of these Agitated film evaporator Long tube vertical evaporator Open pan evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) d2 d1.5 √d d d2 d1.5 √d d ANSWER DOWNLOAD EXAMIANS APP
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