Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Is economical in operation Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Both B & C Employs high velocity, high heat transfer rate and less heating surface requirement Is economical in operation Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Both B & C Employs high velocity, high heat transfer rate and less heating surface requirement ANSWER DOWNLOAD EXAMIANS APP
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. 55 to 75 5 to 10 15 to 30 40 to 50 55 to 75 5 to 10 15 to 30 40 to 50 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"). Equal to 1.5 times Half Three fourth Equal to 1.5 times Half Three fourth ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ dished head is the strongest of all. Hemispherical Elliptical None of these Torispherical Hemispherical Elliptical None of these Torispherical ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Width and depth of grooves in the tube sheet holes normally are __________ inch respectively. 1/64 and 1/8 1/2 and 5 1/2 and 8 1/8 and 1/64 1/64 and 1/8 1/2 and 5 1/2 and 8 1/8 and 1/64 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The function of manholes provided in the shell of a distillation column is to Give access to the individual trays for cleaning, maintenance and installation Guard against foaming & entrainment by dumping antifoaming agent through it All of these Keep a check on the liquid gradient over the plate by direct visual observation Give access to the individual trays for cleaning, maintenance and installation Guard against foaming & entrainment by dumping antifoaming agent through it All of these Keep a check on the liquid gradient over the plate by direct visual observation ANSWER DOWNLOAD EXAMIANS APP
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