Heat Transfer An evaporator while concentrating an aqueous solution from 10 to 40% solids evaporates 30000 kg of water. The amount of solids handled by the system in kg is 9000 3000 4000 4600 9000 3000 4000 4600 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be 0.55 0.85 0.35 0.45 0.55 0.85 0.35 0.45 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equation, Nst = f/2, is the __________ analogy. None of these Reynolds Colburn Prandtl None of these Reynolds Colburn Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is directly concerned with the heat transfer? Grashoff number Euler number Strouhal number Sherwood number Grashoff number Euler number Strouhal number Sherwood number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m².°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be Less than that of the uninsulated steam pipe Less than the steam pipe with 5 cms insulation Equal to that of the uninsulated steam pipe Greater than that for uninsulated steam pipe Less than that of the uninsulated steam pipe Less than the steam pipe with 5 cms insulation Equal to that of the uninsulated steam pipe Greater than that for uninsulated steam pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Peclet number (Pe) is given by Pe = Re/Pr Pe = Re.Pr Pe = Pr/Re Pe = Nu.Re Pe = Re/Pr Pe = Re.Pr Pe = Pr/Re Pe = Nu.Re ANSWER DOWNLOAD EXAMIANS APP
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