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. 1.6 to 2 1.3 to 2 2.5 1.5 to 3 1.6 to 2 1.3 to 2 2.5 1.5 to 3 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.) -q/(1-q) None of these -q -q/(q-1) -q/(1-q) None of these -q -q/(q-1) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Rivets are generally specified by the Shank diameter None of these Head diameter Overall length Shank diameter None of these Head diameter Overall length ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches. 18 12 6 34 18 12 6 34 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.). Hemispherical Ellipsoidal Dished Conical Hemispherical Ellipsoidal Dished Conical ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Weep holes provided in the plates of a distillation column Facilitate draining out liquid from a tray when the unit is not in operation All of these Must be large enough (usually 1/4" to 5/8" dia) to prevent plugging but should not deliver excessive amount of fluid during operation Are normally located near the overflow weir so that any delivery of liquid during operation follows approximately the same path as the overflow fluid Facilitate draining out liquid from a tray when the unit is not in operation All of these Must be large enough (usually 1/4" to 5/8" dia) to prevent plugging but should not deliver excessive amount of fluid during operation 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
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