Heat Transfer In a heat exchanger, floating head is provided to increase the heat transfer area facilitate cleaning of the exchanger relieve stresses caused by thermal expansion increase log mean temperature gradient increase the heat transfer area facilitate cleaning of the exchanger relieve stresses caused by thermal expansion increase log mean temperature gradient 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 Removal of __________ heat is involved in the condensation of a vapor under saturated conditions. Both B & C Latent Super Sensible Both B & C Latent Super Sensible ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Fourier number (defined as a.t/L²) is used in the analysis of problem involving heat transfer by Natural convection Steady state conduction Transient conduction Forced convection Natural convection Steady state conduction Transient conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 50 45 32 37 50 45 32 37 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Open pan evaporators are preferred to be used, when the solution to be concentrated is Highly viscous Corrosive Salty Scaling Highly viscous Corrosive Salty Scaling ANSWER DOWNLOAD EXAMIANS APP
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