Heat Transfer The average heat transfer co-efficient for laminar film condensation on vertical surface is inversely proportional to (where, ΔT = Temperature drop across condensate film ) (ΔT)1/4 None of the listed here (ΔT)2 ΔT (ΔT)1/4 None of the listed here (ΔT)2 ΔT 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 Some 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 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Temperature distribution is dependent on time Three dimensional heat flow is concerned Temperature distribution is independent of time Heat flows in one direction only Temperature distribution is dependent on time Three dimensional heat flow is concerned Temperature distribution is independent of time Heat flows in one direction only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Circulation pump is located below the evaporater to None of these Avoid frequent priming Avoid cavitation Create more suction head None of these Avoid frequent priming Avoid cavitation Create more suction head ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used In low range of temperature differences In high range of temperature differences To prevent corrosion of the tube bundles Because of its low cost In low range of temperature differences In high range of temperature differences To prevent corrosion of the tube bundles Because of its low cost ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms⁻². Neglecting the heat capacity of agitator, the temperature of water (in °C) is 34.4 26.8 25 40.5 34.4 26.8 25 40.5 ANSWER DOWNLOAD EXAMIANS APP
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