Heat Transfer All analogy equations connecting friction factor and heat transfer co-efficient apply only to Wall or skin friction Form friction Turbulent flow Both A and B Wall or skin friction Form friction Turbulent flow Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Decreases Increases Increases exponentially Remains unchanged Decreases Increases Increases exponentially Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Natural convection is characterised by Peclet number Reynolds number Prandtl number Grashhoff number Peclet number Reynolds number Prandtl number Grashhoff number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Value of Nusselt number [Nu = (hD/k)] for the heat transfer by conduction from a droplet or a spherical particle to a surrounding stagnant film is 0.5 100 10 2 0.5 100 10 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is Less More Either more or less ; depends on the nature of vapor Some Less More Either more or less ; depends on the nature of vapor Some ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Circulation pump is located below the evaporater to Create more suction head Avoid cavitation None of these Avoid frequent priming Create more suction head Avoid cavitation None of these Avoid frequent priming ANSWER DOWNLOAD EXAMIANS APP
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