Home / Chemical Engineering / Fluid Mechanics :: Section 2

Chemical Engineering :: Fluid Mechanics

  1. Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure.

  2. A.
    small differential
    B.
    atmospheric
    C.
    absolute
    D.
    gage

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. Isotropic turbulence occurs

  4. A.
    where there is no velocity gradient.
    B.
    at higher temperatures.
    C.
    only in Newtonion fluids.
    D.
    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. The co-efficient of drag and lift for an incompressible fluid depends on the

  6. A.
    Reynolds number
    B.
    Froude number
    C.
    Mach number
    D.
    all (a), (b) and (c)

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. Euler's equation of motion states, that at every point, the

  8. A.
    fluid momentum is constant.
    B.
    force per unit mass equals acceleration.
    C.
    rate of mass outflow is equal to the rate of mass inflow.
    D.
    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. The Navier-Stokes equation deals with the law of conservation of

  10. A.
    mass
    B.
    energy
    C.
    both (a) & (b)
    D.
    momentum

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. Hydraulic intensifier is used for increasing the

  12. A.
    rate of velocity of liquid supply.
    B.
    rate of flow through delivery pipeline of a pump.
    C.
    intensity of pressure of the liquid.
    D.
    momentum rate through delivery pipe.

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. Which of the following is the 'Blaussius equation', relating friction factor to the Reynolds number ?

  14. A.
    f = 0.079.NRe-0.25
    B.
    f-0.5 = 4.07 loge (NRef)-0.6
    C.
    D.
    none of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of

  16. A.
    powder & grannular solids
    B.
    liquids
    C.
    low melting point semi-solids
    D.
    all 'a', 'b' & 'c'

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. Euler's equation of motion is a statement expressing

  18. A.
    conservation of mass.
    B.
    conservation of energy.
    C.
    Newton's first law of motion.
    D.
    Newton's second law of motion.

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. During ageing of fluid carrying pipes, the

  20. A.
    pipe becomes smoother with use.
    B.
    friction factor increases linearly with time.
    C.
    absolute roughness decreases with time.
    D.
    absolute roughness increases linearly with time.

    View Answer

    Workspace

    Discuss Discuss in Forum