Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer? Cross-partition rings Lessig rings All of these Raschig rings Cross-partition rings Lessig rings All of these Raschig rings ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than __________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop. 50 150 75 25 50 150 75 25 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of plain carbon steel, butt welded joints are used for shell plate thickness ≤ __________ cms. . 6.8 0.5 3.8 1.2 6.8 0.5 3.8 1.2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Lug support is Provided usually for vessels of much smaller height than skirt supported vessels All of these Same as bracket support The most suitable for thick vertical vessel Provided usually for vessels of much smaller height than skirt supported vessels All of these Same as bracket support The most suitable for thick vertical vessel ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a given design of bubble cap, the number of bubble caps to be used per tray is set by the Plate spacing Allowable gas velocity through the slots Diameter of the column All of these Plate spacing Allowable gas velocity through the slots Diameter of the column All of these 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. 6 18 12 34 6 18 12 34 ANSWER DOWNLOAD EXAMIANS APP
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