Pick out the wrong statement ?

Process Equipment and Plant Design 20/07/2021

A. For all the cylindrical process vessels operating above atmospheric pressure, formed heads are used for closing the vessel
B. Fouling factor of river water is less than that of sea water
C. Risers provided in bubble cap trays in the distillation column facilitate the flow of both liquid and vapor
D. Both B. and C.

Related Mcqs:

    1.2 to 3.8 cms is the value of the ______________________?
    A. Downcomer liquid seal in case of a balanced tray design B. Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm) C. Skirt clearance for bubble caps D. All A., B. and C....
    The most common standard size of bubble caps used in industrial operation is___________________?
    A. 1″ dia cap with 0.5″ dia riser B. 6″ dia cap with 4″ dia riser C. 8″ dia cap with 1″ dia riser D. 4″ dia cap with 8″ dia riser...
    In shell and tube heat exchangers, straight tie rods are used to_________________?
    A. Hold baffle in space B. Fix the tubes in position C. Account for thermal strain D. None of these...
    The type of stress developed in a metallic bar on subjecting it to a change in temperature without allowing it to be deformed is ______________ stress?
    A. Shear B. Tensile C. Compressive D. Thermal...
    Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 – 1.4 cp and relative volatility < 4) (where ε = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi) ?
    A. η = 17 – 61.1 log μ B. η = 24.6 (Δp/μ) C. η = 1.66 – 0.25 log μ D. η = 0.25 log μ – 1.67...

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