Process Equipment and Plant Design The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from 4 to 8 2 to 3 3 to 5 6 to 12 4 to 8 2 to 3 3 to 5 6 to 12 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall tray efficiency of a distillation column is the ratio of the number of Real trays required to the number of ideal trays required Ideal trays required to the number of real trays required Overall gas transfer units to the number of ideal trays required None of these Real trays required to the number of ideal trays required Ideal trays required to the number of real trays required Overall gas transfer units to the number of ideal trays required None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Back-trapping in a distillation column results due to High gas velocity Low reflux ratio Excessive liquid gradient over the tray Low gas velocity High gas velocity Low reflux ratio Excessive liquid gradient over the tray Low gas velocity ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent. 20 35 55 5 20 35 55 5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A 'rupture disc' is provided in chemical equipments as an accessory meant for Creating turbulence Enhancing mixing rate Avoiding vortex formation Relieving excess pressure Creating turbulence Enhancing mixing rate Avoiding vortex formation Relieving excess pressure ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in temperature drop (in a shell and tube heat exchanger), the LMTD correction factor, FT Decreases very rapidly Increases very rapidly Increases linearly Remains constant Decreases very rapidly Increases very rapidly Increases linearly Remains constant ANSWER DOWNLOAD EXAMIANS APP
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