Heat Transfer The main purpose of providing fins on heat transfer surface is to increase the Heat transfer area Mechanical strength of the equipment Temperature gradient Heat transfer co-efficient Heat transfer area Mechanical strength of the equipment Temperature gradient Heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Presence of a non-condensing gas in a condensing vapour decreases thermal resistance None of the listed here is desirable to increase the film co-efficient increases the rate of condensation decreases thermal resistance None of the listed here is desirable to increase the film co-efficient increases the rate of condensation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Peclet number (Pe) is given by Pe = Nu.Re Pe = Re/Pr Pe = Re.Pr Pe = Pr/Re Pe = Nu.Re Pe = Re/Pr Pe = Re.Pr Pe = Pr/Re ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Duhring rule is important in solving problems on Crystallisation Evaporation Humidification Distillation Crystallisation Evaporation Humidification Distillation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator? Calenderia vertical tube evaporator Agitated film evaporator Long vertical evaporator Horizontal tube evaporator Calenderia vertical tube evaporator Agitated film evaporator Long vertical evaporator Horizontal tube evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, More surface area is required for a given heat transfer rate LMTD is greater Less surface area is required for a given heat transfer rate Both A and B More surface area is required for a given heat transfer rate LMTD is greater Less surface area is required for a given heat transfer rate Both A and B ANSWER DOWNLOAD EXAMIANS APP
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