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 Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure? At the outer surface None of these At the inner surface At the mid thickness of the cylindrical wall At the outer surface None of these At the inner surface At the mid thickness of the cylindrical wall ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times. About 3 Considerably less than 9 Considerably more than 9 About 9 About 3 Considerably less than 9 Considerably more than 9 About 9 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The force due to wind load acting on a tall vessel depends upon its Outside diameter Height Shape All of these Outside diameter Height Shape All of these 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"). 1.5 times Three fourth Equal to Half 1.5 times Three fourth Equal to Half ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of a continuous distillation column, increase in reflux ratio may result in the Greater cost for the reboiler heat supply All of these Lower fixed charges for the column Greater cost for the condenser coolant Greater cost for the reboiler heat supply All of these Lower fixed charges for the column Greater cost for the condenser coolant ANSWER DOWNLOAD EXAMIANS APP
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