For laminar flow (NRe < 2100) in steel pipe, the optimum inside pipe diameter is given by____________________?

Process Equipment and Plant Design 13/12/2020

A. Di, opt = 3 Q0.36 ρ0.18
B. Di, opt = 3.9 Q0.45 ρ0.23
C. Di, opt = 7.6 Q0.36 ρ0.9
D. Di, opt = 3 Q0.36 ρ1.86 μ0.08

Related Mcqs:

    At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally ?
    A. Higher B. Lower C. Same D. Unpredictable...
    The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area ‘A’ is given by (where, P = perimeter of the channel in contact with the fluid) ?
    A. 4 A/P B. A/P C. 4 P/A D. √A...
    Vertical vessels are not supported by____________________?
    A. Brackets B. Skirts C. Columns D. Saddles...
    Pick out the wrong statement pertaining to the design of a basket type evaporator ?
    A. It is used for high viscosity liquor having large rate of scaling B. The tube bundle is suspended on bracket C. There is no central downtake D. Downtake is formed by the annular space between the bundle and the shell...
    Generally, no corrosion allowance in wall thickness of a part is required, if the thickness is more than ______________ mm?
    A. 10 B. 20 C. 30 D. 5...

Leave a Reply

Your email address will not be published. Required fields are marked *