Process Equipment and Plant Design Back-trapping in a distillation column results due to High gas velocity Low gas velocity Low reflux ratio Excessive liquid gradient over the tray High gas velocity Low gas velocity Low reflux ratio Excessive liquid gradient over the tray ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Bracket supports are the most suitable for supporting __________ vessels. Thick walled vertical None of these Thin shperical (e.g. Horton sphere) Horizontal Thick walled vertical None of these Thin shperical (e.g. Horton sphere) Horizontal ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Rotary driers are most economically designed for the number of heat transfer units (HTU) from 5 to 10 0.01 to 1 10 to 20 1.5 to 2.5 5 to 10 0.01 to 1 10 to 20 1.5 to 2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases. Fixed charges initially Running cost of steam for reboiler Running cost of cooling water for condenser Vapour & liquid load both Fixed charges initially Running cost of steam for reboiler Running cost of cooling water for condenser Vapour & liquid load both ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A pipe is generally made of circular cross-section, because a circular cross-section has the Lowest surface area requirement for a given volume Both A & B None of these Higher structural strength Lowest surface area requirement for a given volume Both A & B None of these Higher structural strength ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For turbine agitator, the impeller diameter is about 0.1 to 0.2 d 0.3 to 0.5 d 0.65 to 0.85 d 0.95 d 0.1 to 0.2 d 0.3 to 0.5 d 0.65 to 0.85 d 0.95 d ANSWER DOWNLOAD EXAMIANS APP
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