Heat Transfer Dropwise condensation of steam on cooling surface is promoted Only in presence of air An oily surface None of these When both the steam and the tube are clean Only in presence of air An oily surface None of these When both the steam and the tube are clean ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat flux, as defined in heat flow is analogous to __________ in electricity flow. Resistance Current None of these Voltage Resistance Current None of these Voltage ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Open pan evaporators are preferred to be used, when the solution to be concentrated is Corrosive Scaling Salty Highly viscous Corrosive Scaling Salty Highly viscous ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation heat transfer rates does not depend upon the surface area and temperature of the heat source type of absorbing surface none of the listed here distance between the heat source and the object receiving the heat surface area and temperature of the heat source type of absorbing surface none of the listed here distance between the heat source and the object receiving the heat ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fouling factor None of these Does not provide a safety factor for design Is a dimensionless quantity Accounts for additional resistances to heat flow None of these Does not provide a safety factor for design Is a dimensionless quantity Accounts for additional resistances to heat flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical? 80 0.5 1.5 1 80 0.5 1.5 1 ANSWER DOWNLOAD EXAMIANS APP