Heat Transfer Pick out the correct equation. JH = (St)1/3(Pr) = f/2 JH = (St)2/3(Pr) = f/2 JH = (St)(Pr)1/3 = f/2 JH = (St)(Pr)2/3 = f/2 JH = (St)1/3(Pr) = f/2 JH = (St)2/3(Pr) = f/2 JH = (St)(Pr)1/3 = f/2 JH = (St)(Pr)2/3 = f/2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film boiling is usually not desired in commercial equipments, because it is not economic it is difficult to maintain none of the listed here the heat transfer rate is low in view of the large temperature drop. @ it is not economic it is difficult to maintain none of the listed here the heat transfer rate is low in view of the large temperature drop. @ ANSWER DOWNLOAD EXAMIANS APP
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 ) None of the listed here (ΔT)2 (ΔT)1/4 ΔT None of the listed here (ΔT)2 (ΔT)1/4 ΔT ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. >10 10 Either B or C, depends on the mass of the body >10 10 Either B or C, depends on the mass of the body ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most widely used heat insulating material for pipelines carrying steam? Cotton followed by aluminium foil Tar dolomite bricks followed by asbestos 85% magnesia cement and glass wool Fireclay refractory followed by aluminium sheet Cotton followed by aluminium foil Tar dolomite bricks followed by asbestos 85% magnesia cement and glass wool Fireclay refractory followed by aluminium sheet ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? Geometric mean area Logarithmic mean area Arithmetic mean area None of the listed here Geometric mean area Logarithmic mean area Arithmetic mean area None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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