Process Equipment and Plant Design Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around 0.4-0.6 0.35-0.75 0.55-0.85 0.1-0.2 0.4-0.6 0.35-0.75 0.55-0.85 0.1-0.2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre. 0.1-0.2 1.2-1.5 0.2-0.5 0.4-0.9 0.1-0.2 1.2-1.5 0.2-0.5 0.4-0.9 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of (1.2)5/3 (1.2)3/5 (1.2)2/3 (1.2)3/2 (1.2)5/3 (1.2)3/5 (1.2)2/3 (1.2)3/2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Frame thickness in the plate and frame filter press is normally in the range of __________ inches. 1 to 12 0.25 to 4 1 to 5 0.25 to 8 1 to 12 0.25 to 4 1 to 5 0.25 to 8 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The necessary wall thickness for a metallic storage vessel is a function of the Diameter of the vessel All of these Operating pressure and welding/joint efficiency Ultimate tensile strength (or yield point) of the material and operating temperature Diameter of the vessel All of these Operating pressure and welding/joint efficiency Ultimate tensile strength (or yield point) of the material and operating temperature ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An adequate clearance between the tray and the shell wall of a distillation column is provided to Allow for thermal expansion and facilitate installation None of these Drain the liquid from the tray when the unit is not in operation Avoid back-trapping Allow for thermal expansion and facilitate installation None of these Drain the liquid from the tray when the unit is not in operation Avoid back-trapping ANSWER DOWNLOAD EXAMIANS APP
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