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 Which of the following efficiencies can be greater than 100%? None of these Point efficiency Murphree plate efficiency Overall plate efficiency None of these Point efficiency Murphree plate efficiency Overall plate efficiency 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. 25 5 1 15 25 5 1 15 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of (1.2)5/3 (1.2)3/2 (1.2)3/5 (1.2)2/3 (1.2)5/3 (1.2)3/2 (1.2)3/5 (1.2)2/3 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C. 1250 2500 15000 7500 1250 2500 15000 7500 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less Are less prone to fouling None of these Are easier to clean Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less Are less prone to fouling None of these Are easier to clean ANSWER DOWNLOAD EXAMIANS APP
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