Process Equipment and Plant Design In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps. 1.3 to 2 2.5 1.6 to 2 1.5 to 3 1.3 to 2 2.5 1.6 to 2 1.5 to 3 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)3/2 (1.2)5/3 (1.2)3/5 (1.2)2/3 (1.2)3/2 (1.2)5/3 (1.2)3/5 (1.2)2/3 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle? Helical type baffle Disk type baffle Segmental baffle Flat plate extending across the wall Helical type baffle Disk type baffle Segmental baffle Flat plate extending across the wall ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The wall thickness of thin cylindrical shell with hemispherical ends is __________ that of the spherical ends. Less than More than Equal to Either B or C; depends on maximum permissible internal pressure Less than More than Equal to Either B or C; depends on maximum permissible internal pressure ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in pressure drop (for a given particle size), the dust collection efficiency of a cyclone separator will Remain unaffected Decrease Increase or decrease depending on the nature of the dust Increase Remain unaffected Decrease Increase or decrease depending on the nature of the dust Increase ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Baffles may be eliminated for High viscosity liquids (> 600 poise) Low viscosity liquids (< 200 poise) None of these Large diameter tanks High viscosity liquids (> 600 poise) Low viscosity liquids (< 200 poise) None of these Large diameter tanks ANSWER DOWNLOAD EXAMIANS APP
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