Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer? Raschig rings All of these Cross-partition rings Lessig rings Raschig rings All of these Cross-partition rings Lessig rings 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 = 3 Q0.36 . ρ1.86 μ0.08 Di, opt = 3.9 Q0.45 . ρ0.23 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3 Q0.36 . ρ1.86 μ0.08 Di, opt = 3.9 Q0.45 . ρ0.23 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 7.6 Q0.36 . ρ0.9 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds. 12.5 2.5 5 17.5 12.5 2.5 5 17.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always Both B & C More than arithmetic mean value Less than arithmetic mean value More than geometric mean value Both B & C More than arithmetic mean value Less than arithmetic mean value More than geometric mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Liquid gradient over the tray results due to the Resistance offered to flow of liquids by caps & risers and the flow of gas Low gas velocity Large reflux ratio Large plate spacing Resistance offered to flow of liquids by caps & risers and the flow of gas Low gas velocity Large reflux ratio Large plate spacing ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Speed of industrial paddle agitator ranges from __________ rpm. 1000 to 2000 20 to 100 1 to 5 500 to 750 1000 to 2000 20 to 100 1 to 5 500 to 750 ANSWER DOWNLOAD EXAMIANS APP
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