Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Employs high velocity, high heat transfer rate and less heating surface requirement Both B & C Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Is economical in operation Employs high velocity, high heat transfer rate and less heating surface requirement Both B & C 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 A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design Only if the opening is on a vertical cylinderical vessel Only if the opening is on spherical vessel Only if the opening is on a horizontal cylinderical vessel Irrespective of the shape of the vessel Only if the opening is on a vertical cylinderical vessel Only if the opening is on spherical vessel Only if the opening is on a horizontal cylinderical vessel Irrespective of the shape of the vessel ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Rotary driers are most economically designed for the number of heat transfer units (HTU) from 0.01 to 1 10 to 20 5 to 10 1.5 to 2.5 0.01 to 1 10 to 20 5 to 10 1.5 to 2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For storing hazardous chemicals in large storage tanks, the minimum safe distance between the two tanks should range between __________ times the tank diameter. 2.5 to 3.5 4 to 5 6 to 8 1 to 1.5 2.5 to 3.5 4 to 5 6 to 8 1 to 1.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Heat transfer co-efficient, hG(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to 0.0176G1.37 HG = 0.0176G0.37 1.004G0.8 HG = 1.004G0.37 0.0176G1.37 HG = 0.0176G0.37 1.004G0.8 HG = 1.004G0.37 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube? Long tube vertical evaporator Horizontal tube evaporator Short tube vertical evaporator None of these Long tube vertical evaporator Horizontal tube evaporator Short tube vertical evaporator None of these ANSWER DOWNLOAD EXAMIANS APP
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