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  • Question
  • Which of the following is an example of laminar flow?


  • Options
  • A. Under ground flow
  • B. Flow past tiny bodies
  • C. Flow of oil in measuring instruments
  • D. all of these

  • Correct Answer
  • all of these 


  • Hydraulics and Fluid Mechanics problems


    Search Results


    • 1. The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

    • Options
    • A. w x Q x H
    • B. w x Q x hf
    • C. w x Q (H - hf)
    • D. w x Q (H + hf)
    • Discuss
    • 2. If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in

    • Options
    • A. neutral equilibrium
    • B. stable equilibrium
    • C. unstable equilibrium
    • D. none of these
    • Discuss
    • 3. Coefficient of contraction is the ratio of

    • Options
    • A. actual velocity of jet at vena contracta to the theoretical velocity
    • B. loss of head in the orifice to the head of water available at the exit of the orifice
    • C. actual discharge through an orifice to the theoretical discharge
    • D. area of jet at vena contracta to the area of orifice
    • Discuss
    • 4. The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

    • Options
    • A. 1/RN
    • B. 4/RN
    • C. 16/RN
    • D. 64/RN
    • Discuss
    • 5. In a venturimeter, the velocity of liquid at throat is __________ than at inlet.

    • Options
    • A. higher
    • B. lower
    • Discuss
    • 6. The stability of a dam is checked for

    • Options
    • A. tension at the base
    • B. overturning of the wall or dam
    • C. sliding of the wall or dam
    • D. all of these
    • Discuss
    • 7. In order to measure the flow with a venturimeter, it is installed in

    • Options
    • A. horizontal line
    • B. inclined line with flow upwards
    • C. inclined line with flow downwards
    • D. any direction and in any location
    • Discuss
    • 8. An ideal fluid is frictionless and incompressible.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 9. The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly enlarged to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden enlargement is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 10. The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)

    • Options
    • A. Cd x b2gH
    • B. Cd x b2g x H
    • C. Cd x b2g x H3/2
    • D. Cd x b2g x H2
    • Discuss


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