Heat Transfer Choose the most important factor on which the heat conducted through a wall in a unit time will depend on? Temperature difference between the two surfaces of the wall Material of the wall Area of the wall perpendicular to heat flow Thickness of the wall Temperature difference between the two surfaces of the wall Material of the wall Area of the wall perpendicular to heat flow Thickness of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used Because of its low cost In high range of temperature differences In low range of temperature differences To prevent corrosion of the tube bundles Because of its low cost In high range of temperature differences In low range of temperature differences To prevent corrosion of the tube bundles ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid for fluids in laminar flow none of the listed here for fluids in tubulent flow when Grashhoff number is very important for fluids in laminar flow none of the listed here for fluids in tubulent flow when Grashhoff number is very important ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Convective heat transfer co-efficient in case of fluid flowing in tubes is not affected by the tube length/diameter ratio, if the flow is in the __________ zone. laminar None of the listed here transition highly turbulent laminar None of the listed here transition highly turbulent ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Partial ionisation High viscosity Dense structure Low density Partial ionisation High viscosity Dense structure Low density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number for most of dry gases is about 150 0.001 0.72 70 150 0.001 0.72 70 ANSWER DOWNLOAD EXAMIANS APP
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