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  • Question
  • Which of the following is not a dimension-less parameter?


  • Options
  • A. Euler number
  • B. Specific gravity
  • C. Fanning friction factor
  • D. None of these

  • Correct Answer
  • None of these 


  • Fluid Mechanics problems


    Search Results


    • 1. Schedule number of a pipe, which is a measure of its wall thickness, is given by

    • Options
    • A. 1000 P'/S
    • B. 100 P'/S
    • C. 1000 S/P'
    • D. 10000 P'/S
    • Discuss
    • 2. Which of the following denotes the effect of compressibility in fluid flow?

    • Options
    • A. Weber number
    • B. Mach number
    • C. Euler number
    • D. Reynolds number
    • Discuss
    • 3. The dimension of dynamic viscosity is

    • Options
    • A. ML-1T-1
    • B. L2T-1
    • C. LT-2
    • D. ML-1T-2
    • Discuss
    • 4. Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.

    • Options
    • A. smaller than
    • B. larger than
    • C. same as
    • D. twice
    • Discuss
    • 5. A Bingham fluid of viscosity ? = 10 Pa.s and yield stress, ?0 = 10 KPa, is shared between flat parallel plates separated by a distance of 10-3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is

    • Options
    • A. 10 KPa
    • B. 20 KPa
    • C. 30 KPa
    • D. 40 KPa
    • Discuss
    • 6. Dimension of surface tension is(where, F = force, L = length)

    • Options
    • A. FL-1
    • B. F-1 . L
    • C. F.L-2
    • D. F-2 . L
    • Discuss
    • 7. In fluid flow, cavitation is caused, if the

    • Options
    • A. fluid velocity decreases to zero.
    • B. total energy decreases.
    • C. both (a) and (b).
    • D. flow pressure approaches its vapor pressure at the prevailing temperature.
    • Discuss
    • 8. Head developed by a centrifugal pump depends on its

    • Options
    • A. speed
    • B. impeller diameter
    • C. both (a) and (b)
    • D. neither (a) nor (b)
    • Discuss
    • 9. All pipes of a particular nominal size have the same

    • Options
    • A. inside diameter
    • B. outside diameter
    • C. thickness
    • D. none of these
    • Discuss
    • 10. At high Reynolds number

    • Options
    • A. inertial forces control and viscous forces are unimportant.
    • B. viscous forces predominate.
    • C. inertial forces are unimportant and viscous forces control.
    • D. none of these.
    • Discuss


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