Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Forced convection only Free and forced convection Forced convection and conduction Conduction only Forced convection only Free and forced convection Forced convection and conduction Conduction only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A black body does not __________ radiation. Absorb or emit Reflect Refract Both B & C Absorb or emit Reflect Refract Both B & C 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. 5 minutes 10 minutes 20 minutes 40 minutes 5 minutes 10 minutes 20 minutes 40 minutes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of non-metallic amorphous solids increases decreases remains same None of the listed here increases decreases remains same None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, floating head is used for Low pressure drop Large temperature differentials Less corrosion of tubes High heat transfer co-efficient Low pressure drop Large temperature differentials Less corrosion of tubes High heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Correction is applied to LMTD for __________ flow. None of these Parallel Counter Cross None of these Parallel Counter Cross ANSWER DOWNLOAD EXAMIANS APP
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