Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because There is no risk of contamination Cost of equipment is lower Heat transfer co-efficient are high There is no mist formation There is no risk of contamination Cost of equipment is lower Heat transfer co-efficient are high There is no mist formation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Liquid density Interfacial tension Liquid viscosity Hot surface temperature Liquid density Interfacial tension Liquid viscosity Hot surface temperature 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. highly turbulent laminar transition None of the listed here highly turbulent laminar transition None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Open pan evaporators are preferred to be used, when the solution to be concentrated is Scaling Corrosive Highly viscous Salty Scaling Corrosive Highly viscous Salty ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The separation of liquid droplets from the vapor is done by a/an __________ , in the evaporators. Steam ejector Entrainment separator Vacuum pump Compressor Steam ejector Entrainment separator Vacuum pump Compressor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The unit of conductance in SI unit is W/°K W/m² W/m°K W/m W/°K W/m² W/m°K W/m ANSWER DOWNLOAD EXAMIANS APP