Process Equipment and Plant Design Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid Is highly viscous Containing suspended solids flows at low velocity Is of high specific gravity Containing suspended solids flows at high velocity Is highly viscous Containing suspended solids flows at low velocity Is of high specific gravity Containing suspended solids flows at high velocity ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio. 1.6 to 2 2.2 to 2.6 2.7 to 3 1.1 to 1.5 1.6 to 2 2.2 to 2.6 2.7 to 3 1.1 to 1.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following factors affect the pressure drop in a co-current gas-liquid absorption packed tower? Size, shape, orientation and surface of the packing particles All of these Fluid flow rates Density and viscosity of fluids Size, shape, orientation and surface of the packing particles All of these Fluid flow rates Density and viscosity of fluids ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A claming section before the liquid flows into the downcomer is privided to Permit release of entrained vapour in the liquid Cool the liquid before it flows down Reduce the discharge fluctuation Ensure better vapour-liquid contact Permit release of entrained vapour in the liquid Cool the liquid before it flows down Reduce the discharge fluctuation Ensure better vapour-liquid contact 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 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 Both B & C Less than arithmetic mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around 300 and 500 5 and 10 45 and 75 180 and 300 300 and 500 5 and 10 45 and 75 180 and 300 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS