Process Equipment and Plant Design In actual operation of a bubble cap distillation tower, the __________ at the bottom of the tower is more than that at the top of the tower. All of these Pressure and temperature Vapour molecular weight Molal flow rate of vapour All of these Pressure and temperature Vapour molecular weight Molal flow rate of vapour ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Maximum acceptable total liquid gradient over a tray is about __________ mm. 12.5 30.5 5.5 45.5 12.5 30.5 5.5 45.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In perforated plate towers, the Hole sizes may be around 1/8" or 3/16" Total hole area may be around 6 to 15% of tower cross-sectional area All of these Pressure drop is less compared is similar bubble cap towers Hole sizes may be around 1/8" or 3/16" Total hole area may be around 6 to 15% of tower cross-sectional area All of these Pressure drop is less compared is similar bubble cap towers ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the Working stress to ultimate stress Ultimate stress to working stress None of these Ultimate stress to breaking stress Working stress to ultimate stress Ultimate stress to working stress None of these Ultimate stress to breaking stress ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Back-trapping in a distillation column results due to Low reflux ratio High gas velocity Low gas velocity Excessive liquid gradient over the tray Low reflux ratio High gas velocity Low gas velocity Excessive liquid gradient over the tray ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For turbulent flow (NRe > 2100) of low viscosity fluid (μ > 20cp) in steel pipes, the optimum inside pipe diameter is given by(where, Q = fluid flow rate, ft³/sec.ρ = fluid density, lb/ft³ μ = fluid viscosity, centipoise Di = optimum inside pipe diameter, inches) Di, opt = 4.7 Q0.36 . μ3.2ρ0.13 Di, opt = 3.9 Q0.45 . μ0.95 Di, opt = 3.9 Q0.45 ρ0.13 Di, opt = 3 Q0.36 . μ0.88 Di, opt = 4.7 Q0.36 . μ3.2ρ0.13 Di, opt = 3.9 Q0.45 . μ0.95 Di, opt = 3.9 Q0.45 ρ0.13 Di, opt = 3 Q0.36 . μ0.88 ANSWER DOWNLOAD EXAMIANS APP
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