Process Equipment and Plant Design Back-trapping in a distillation column results due to High gas velocity Low reflux ratio Low gas velocity Excessive liquid gradient over the tray High gas velocity Low reflux ratio Low gas velocity Excessive liquid gradient over the tray 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. 34 18 6 12 34 18 6 12 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower. 5-7.5 15-20 10-12.5 2.5-3.0 5-7.5 15-20 10-12.5 2.5-3.0 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In distillation columns, bubble caps are held in place over trays by Bolts Rivets A hold down bar Both B and C Bolts Rivets A hold down bar Both B and C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a multipass shell and tube heat exchanger, the problem of differential expansion between the shell and tube passes is taken care of by using a Either A or B Floating head tube sheet Neither A nor B U-bend Either A or B Floating head tube sheet Neither A nor B U-bend ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a __________ rivetted joint, the number of rivets decreases from the innermost row to the outermost row. Diamond None of these Chain Zig-zag Diamond None of these Chain Zig-zag ANSWER DOWNLOAD EXAMIANS APP
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