Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the All of these Nature of heating surface and distribution of bubbles Viscosity of water Surface tension of water All of these Nature of heating surface and distribution of bubbles Viscosity of water Surface tension of water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system Total heat transfer area of all the effects is -less than that in a single effect evaporator system Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system Total heat transfer area of all the effects is -less than that in a single effect evaporator system Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer While the total emissivity of a perfect black body is unity, the same for a real body is 1 >1 0 between 0 and 1 1 >1 0 between 0 and 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation accounts for Investment economy None of these Lower operating costs Steam economy Investment economy None of these Lower operating costs Steam economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time t = 283 s t = 356 s t = 400 s t = 800 s t = 283 s t = 356 s t = 400 s t = 800 s ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is concerned with both heat and mass transfer ? Lewis relationship Nusselt number Froude number Kutateladze number Lewis relationship Nusselt number Froude number Kutateladze number ANSWER DOWNLOAD EXAMIANS APP
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