Process Equipment and Plant Design Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower. 15-20 10-12.5 2.5-3.0 5-7.5 15-20 10-12.5 2.5-3.0 5-7.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer? Lessig rings All of these Cross-partition rings Raschig rings Lessig rings All of these Cross-partition rings Raschig rings ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design It is not desirable to design a heat exchanger for LMTD correction factor, FT, of less than 0.99 0.8 0.55 0.95 0.99 0.8 0.55 0.95 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 Less than arithmetic mean value More than arithmetic mean value More than geometric mean value Both B & C Less than arithmetic mean value More than arithmetic mean value More than geometric mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design 1.2 to 3.8 cms is the value of the All of these Skirt clearance for bubble caps Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.) Downcomer liquid seal in case of a balanced tray design All of these Skirt clearance for bubble caps Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.) Downcomer liquid seal in case of a balanced tray design 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 1.004G0.8 HG = 1.004G0.37 HG = 0.0176G0.37 0.0176G1.37 1.004G0.8 HG = 1.004G0.37 HG = 0.0176G0.37 ANSWER DOWNLOAD EXAMIANS APP
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