Process Equipment and Plant Design Generally, elliptical dished heads Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter All of these Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m² Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter All of these Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m² ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to D 1.5 d 2.5 d 0.5 d D 1.5 d 2.5 d 0.5 d ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Bubble cap tray is the most commonly used tray in large distillation column, because It eliminates the foaming and entrain-ment tendency during operation It incurs less pressure drop as compared to any other try designed for the same duty Of its flexibility and nearly constant efficiency under varying conditions of operation None of these It eliminates the foaming and entrain-ment tendency during operation It incurs less pressure drop as compared to any other try designed for the same duty Of its flexibility and nearly constant efficiency under varying conditions of operation None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Reflux ratio variation in a distillation column is between None of these Zero and one Minimum and infinity Zero and infinity None of these Zero and one Minimum and infinity Zero and infinity ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Stage efficiency for packed tower varies with the Operating pressure and column diameter Fluid rates and fluid properties Type & size of packing All of these Operating pressure and column diameter Fluid rates and fluid properties Type & size of packing All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid Containing suspended solids flows at low velocity Is highly viscous Containing suspended solids flows at high velocity Is of high specific gravity Containing suspended solids flows at low velocity Is highly viscous Containing suspended solids flows at high velocity Is of high specific gravity ANSWER DOWNLOAD EXAMIANS APP
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