Process Equipment and Plant Design Weep holes provided in the plates of a distillation column Must be large enough (usually 1/4" to 5/8" dia) to prevent plugging but should not deliver excessive amount of fluid during operation Facilitate draining out liquid from a tray when the unit is not in operation All of these Are normally located near the overflow weir so that any delivery of liquid during operation follows approximately the same path as the overflow fluid Must be large enough (usually 1/4" to 5/8" dia) to prevent plugging but should not deliver excessive amount of fluid during operation Facilitate draining out liquid from a tray when the unit is not in operation All of these Are normally located near the overflow weir so that any delivery of liquid during operation follows approximately the same path as the overflow fluid ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An underdesigned steam trap will None of these Back up condensate and cause water hammer in steam line Waste steam Destroy itself of acceleration wear due to rapid recycling None of these Back up condensate and cause water hammer in steam line Waste steam Destroy itself of acceleration wear due to rapid recycling ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally. Lower Higher Same Unpredictable Lower Higher Same Unpredictable ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ shaped roof is most commonly used for cylindrical tanks. Cone Flat Dome Umbrella Cone Flat Dome Umbrella ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a Cap pitch of 1.3-2 times the cap diameter Clearance of 25-75 mm Either A or B Neither A nor B Cap pitch of 1.3-2 times the cap diameter Clearance of 25-75 mm Either A or B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi) Η = 17 - 61.1 log μ Η = 0.25 log μ - 1.67 Η = 24.6 (Δp/μ) Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ Η = 0.25 log μ - 1.67 Η = 24.6 (Δp/μ) Η = 1.66 - 0.25 log μ ANSWER DOWNLOAD EXAMIANS APP
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