Heat Transfer In a multiple effect evaporator, the effect of boiling point elevation is to reduce the capacity all of the listed here increase the economy reduce the economy reduce the capacity all of the listed here increase the economy reduce the economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing expansion bellows in the shell of tubular exchanger is to Account for the uneven expansion of shell and tube bundles Impart structural strength Increase the heating load Facilitate increase of shell length, if needed Account for the uneven expansion of shell and tube bundles Impart structural strength Increase the heating load Facilitate increase of shell length, if needed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fouling factor None of these Accounts for additional resistances to heat flow Does not provide a safety factor for design Is a dimensionless quantity None of these Accounts for additional resistances to heat flow Does not provide a safety factor for design Is a dimensionless quantity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? Square pitch Diagonal square pitch None of these Triangular pitch Square pitch Diagonal square pitch None of these Triangular pitch ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is Uniformly distributed throughout the fluid Mainly confined to a thin film of fluid near the surface None of these In the central core of the fluid Uniformly distributed throughout the fluid Mainly confined to a thin film of fluid near the surface None of these In the central core of the fluid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions ? Assume that the conductive heat transfer co-efficient is infinitely large. 20 minutes 40 minutes 10 minutes 5 minutes 20 minutes 40 minutes 10 minutes 5 minutes ANSWER DOWNLOAD EXAMIANS APP
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