Heat Transfer Open pan evaporators are preferred to be used, when the solution to be concentrated is Highly viscous Corrosive Salty Scaling Highly viscous Corrosive Salty Scaling 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 ) (ΔT)1/4 ΔT None of the listed here (ΔT)2 (ΔT)1/4 ΔT None of the listed here (ΔT)2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The interchange factor for radiation heat transfer from surface 'x' to surface 'y' in case of an infinite parallel planes with emis-sivities εx & εy is given by 1/εx + 1/εy Εx + εy (εx + εy)/(εx + εy - εx . εy) Εx . εy 1/εx + 1/εy Εx + εy (εx + εy)/(εx + εy - εx . εy) Εx . εy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A composite flat wall of a furnace is made of two materials 'A' and 'B'. The thermal conductivity of 'A' is twice of that of material 'B', while the thickness of layer of 'A' is half that of B. If the temperature at the two sides of the wall are 400 and 1200°K, then the temperature drop (in °K) across the layer of material 'A' is 150 160 133 125 150 160 133 125 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Solids Liquids Gases Both solids & liquids Solids Liquids Gases Both solids & liquids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, the shell side fluid velocity can not be changed by changing the Tube layout Tube diameter Tube pitch No. of baffles Tube layout Tube diameter Tube pitch No. of baffles ANSWER DOWNLOAD EXAMIANS APP
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