Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Conduction only Free and forced convection Forced convection only Forced convection and conduction Conduction only Free and forced convection Forced convection only Forced convection and conduction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? When fluid flows past a smooth surface None of these At high fluid velocity At low velocity When fluid flows past a smooth surface None of these At high fluid velocity At low velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The value of Stefan-Boltazman constant in SI unit is 0.1714 x 10-8W/m².°K4 5.6697 x 10-8kcal/m² . °K4 5.6697 x 10-8W/m².°K4 0.1714 x 10-8kcal/m². °K4 0.1714 x 10-8W/m².°K4 5.6697 x 10-8kcal/m² . °K4 5.6697 x 10-8W/m².°K4 0.1714 x 10-8kcal/m². °K4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is used for chilling oil to be dewaxed. Double pipe Fixed tube U-tube Floating head Double pipe Fixed tube U-tube Floating head ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m² .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the Condensate is corrosive in nature Lower pressure drop through the exchanger is desired Temperature of the incoming vapor is very high Higher condensing film co-efficient is desired Condensate is corrosive in nature Lower pressure drop through the exchanger is desired Temperature of the incoming vapor is very high Higher condensing film co-efficient is desired ANSWER DOWNLOAD EXAMIANS APP
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 temperature follows __________ law. Linear Hyperbolic Parabolic Logarithmic Linear Hyperbolic Parabolic Logarithmic ANSWER DOWNLOAD EXAMIANS APP
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