Process Equipment and Plant Design In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds. 5 2.5 12.5 17.5 5 2.5 12.5 17.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Weep holes provided in the plates of a distillation column Are normally located near the overflow weir so that any delivery of liquid during operation follows approximately the same path as the overflow fluid All of these Facilitate draining out liquid from a tray when the unit is not in operation 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 All of these Facilitate draining out liquid from a tray when the unit is not in operation Must be large enough (usually 1/4" to 5/8" dia) to prevent plugging but should not deliver excessive amount of fluid during operation ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The safe distance of habitation from a hazardous chemical plant (TLV of its product < 1000 ppm) should be about __________ kms. 5 25 15 1 5 25 15 1 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency Decreases May increase or decrease depending upon the plate spacing Remains same Increases Decreases May increase or decrease depending upon the plate spacing Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ tower is the most suitable gas-liquid contacting device involving highly corrosive fluids. Packed Bubble cap plate Sieve plate None of these Packed Bubble cap plate Sieve plate None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation Increases capacity Both B & C Increases economy Does not affect the capacity Increases capacity Both B & C Increases economy Does not affect the capacity ANSWER DOWNLOAD EXAMIANS APP
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