Heat Transfer With increase in temperature, the thermal conductivity of steel Remains unchanged Decreases Increases Increases exponentially Remains unchanged Decreases Increases Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Temperature profile in steady state heat transfer is parabolic Linear hyperbolic none of the listed here parabolic Linear hyperbolic none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, floating head is used for Large temperature differentials Low pressure drop Less corrosion of tubes High heat transfer co-efficient Large temperature differentials Low pressure drop Less corrosion of tubes High heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An evaporator while concentrating an aqueous solution from 10 to 40% solids evaporates 30000 kg of water. The amount of solids handled by the system in kg is 4600 3000 9000 4000 4600 3000 9000 4000 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 20 minutes 5 minutes 10 minutes 40 minutes 20 minutes 5 minutes 10 minutes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Graetz number is given by mCp/kL kμ/mCp kL/mCp mCp/kμ mCp/kL kμ/mCp kL/mCp mCp/kμ ANSWER DOWNLOAD EXAMIANS APP
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