Process Equipment and Plant Design Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower. 10-12.5 15-20 5-7.5 2.5-3.0 10-12.5 15-20 5-7.5 2.5-3.0 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Both B & C Employs high velocity, high heat transfer rate and less heating surface requirement Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Is economical in operation Both B & C Employs high velocity, high heat transfer rate and less heating surface requirement Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Is economical in operation ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter. 0.5 to 0.6 0.1 to 0.25 0.3 to 0.5 0.65 to 0.80 0.5 to 0.6 0.1 to 0.25 0.3 to 0.5 0.65 to 0.80 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Baffles may be eliminated for 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 High viscosity liquids (> 600 poise) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is Shear Elongation Bending Deformation Shear Elongation Bending Deformation ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8"). Half 1.5 times Equal to Three fourth Half 1.5 times Equal to Three fourth ANSWER DOWNLOAD EXAMIANS APP
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