Process Equipment and Plant Design The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always >1 < 1 Equal to the order of reaction 1 >1 < 1 Equal to the order of reaction 1 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. More than Either B or C; depends on maximum permissible internal pressure Equal to Less than More than Either B or C; depends on maximum permissible internal pressure Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator 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 Is economical in operation ANSWER DOWNLOAD EXAMIANS APP
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 1.6 to 2 2.5 1.5 to 3 1.3 to 2 1.6 to 2 2.5 1.5 to 3 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement about the design of seive plate column and the bubble cap column. Weir height for a bubble cap plate column is the same as that for a seive plate column Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the seive plate The downcomer design and the residence time in the downcomer is almost same for seive plate and bubble cap columns Weir length for a bubble cap plate is the same as that for the seive plate Weir height for a bubble cap plate column is the same as that for a seive plate column Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the seive plate The downcomer design and the residence time in the downcomer is almost same for seive plate and bubble cap columns Weir length for a bubble cap plate is the same as that for the seive plate ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The thermal stress in a metallic bar does not depend upon the Changes in temperature Cross-sectional area Neither A nor B Both A & B Changes in temperature Cross-sectional area Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
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