Process Equipment and Plant Design The diameter of a propeller agitator used in agitation tank ranges from __________ percent of the tank diameter and its peripherial speed is normally 300 to 500 metres/minute. 40 to 50 55 to 75 15 to 30 5 to 10 40 to 50 55 to 75 15 to 30 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Larger depth of liquid on the trays of a distillation column Results in higher pressure drop per tray Neither A nor B Leads to high tray efficiency Both A & B Results in higher pressure drop per tray Neither A nor B Leads to high tray efficiency Both A & B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by An increase in relatived volatility for rectification columns Decrease in gas solubility for absorbers An increase in liquid viscosity All of these An increase in relatived volatility for rectification columns Decrease in gas solubility for absorbers An increase in liquid viscosity All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum tray spacing in distillation column of diameter less than 3 ft is normally __________ inches. 34 18 24 6 34 18 24 6 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 U-bend Either A or B Neither A nor B Floating head tube sheet U-bend Either A or B Neither A nor B Floating head tube sheet ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Ratio of tube length to shell diameter for a shell and tube heat exchanger is < 4 : 1 for gas-gas exchangers Both B & C 4 : 1 to 8 : 1 for liquid-liquid exchanger 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers < 4 : 1 for gas-gas exchangers Both B & C 4 : 1 to 8 : 1 for liquid-liquid exchanger 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers ANSWER DOWNLOAD EXAMIANS APP
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