Process Equipment and Plant Design In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps. 1.5 to 3 2.5 1.3 to 2 1.6 to 2 1.5 to 3 2.5 1.3 to 2 1.6 to 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.) L/Z.H.ρ Z.H.ρ/L Z.H/L.ρ H.ρ/L L/Z.H.ρ Z.H.ρ/L Z.H/L.ρ H.ρ/L ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns. Either A or B; no generalisation can be made Same More Less Either A or B; no generalisation can be made Same More Less ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a heat exchanger, shell side fluid velocity can be changed by changing the tube Layout Both A & B Pitch Neither A nor B Layout Both A & B Pitch Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer). 650 750 450 250 650 750 450 250 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Triangular pitch tube layout as compared to square pitch in a shell and tube heat exchanger Permits the use of more tubes in a given shell diameter Facilitates comparatively easier external cleaning because of large clearance Permits the use of less tubes in a given shell diameter Both B and C Permits the use of more tubes in a given shell diameter Facilitates comparatively easier external cleaning because of large clearance Permits the use of less tubes in a given shell diameter Both B and C ANSWER DOWNLOAD EXAMIANS APP
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