Heat Transfer Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the Temperature of the fin end Constant temperature equal to that of the base Surrounding temperature Average temperature of the fin Temperature of the fin end Constant temperature equal to that of the base Surrounding temperature Average temperature of the fin ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Temperature distribution is independent of time Three dimensional heat flow is concerned Temperature distribution is dependent on time Heat flows in one direction only Temperature distribution is independent of time Three dimensional heat flow is concerned Temperature distribution is dependent on time Heat flows in one direction only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator depends upon the Heat balance consideration Both A and B Rate of heat transfer Neither A nor B Heat balance consideration Both A and B Rate of heat transfer Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is concerned with both heat and mass transfer ? Nusselt number Lewis relationship Kutateladze number Froude number Nusselt number Lewis relationship Kutateladze number Froude number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Open pan evaporators are preferred to be used, when the solution to be concentrated is Scaling Highly viscous Salty Corrosive Scaling Highly viscous Salty Corrosive ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Choose the most important factor on which the heat conducted through a wall in a unit time will depend on? Material of the wall Area of the wall perpendicular to heat flow Thickness of the wall Temperature difference between the two surfaces of the wall Material of the wall Area of the wall perpendicular to heat flow Thickness of the wall Temperature difference between the two surfaces of the wall ANSWER DOWNLOAD EXAMIANS APP
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