Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Both B & C Is economical in operation Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Employs high velocity, high heat transfer rate and less heating surface requirement Both B & C Is economical in operation Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Employs high velocity, high heat transfer rate and less heating surface requirement ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress. Twice Eight times Half Equal to Twice Eight times Half Equal to ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head. 3 times the thickness Either A or B, whichever is smaller Either A or B, whichever is larger 6% of I.D. 3 times the thickness Either A or B, whichever is smaller Either A or B, whichever is larger 6% of I.D. ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Hazards associated with the relief valve leakage for extremely hazardous material storage can be taken care of by providing None of these Surge chamber Dikes Rupture diaphragm None of these Surge chamber Dikes Rupture diaphragm 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 Lower fixed charges for the column All of these Greater cost for the condenser coolant Greater cost for the reboiler heat supply Lower fixed charges for the column All of these Greater cost for the condenser coolant ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For laminar flow (NRe < 2100) in steel pipe, the optimum inside pipe diameter is given by Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3.9 Q0.45 . ρ0.23 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 3 Q0.36 . ρ1.86 μ0.08 Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3.9 Q0.45 . ρ0.23 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 3 Q0.36 . ρ1.86 μ0.08 ANSWER DOWNLOAD EXAMIANS APP
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