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Home Mechanical Engineering Hydraulics and Fluid Mechanics Comments

  • Question
  • The velocity of flow is same at all points in the cross-section of a channel.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 


  • Hydraulics and Fluid Mechanics problems


    Search Results


    • 1. An average value of coefficient of velocity is

    • Options
    • A. 0.62
    • B. 0.76
    • C. 0.84
    • D. 0.97
    • Discuss
    • 2. The pressure at a point 4 m below the free surface of water is

    • Options
    • A. 19.24 kPa
    • B. 29.24 kPa
    • C. 39.24 kPa
    • D. 49.24 kPa
    • Discuss
    • 3. A pitot tube is used to measure the

    • Options
    • A. velocity of flow at the required point in a pipe
    • B. pressure difference between two points in a pipe
    • C. total pressure of liquid flowing in a pipe
    • D. discharge through a pipe
    • Discuss
    • 4. When an internal mouthpiece is running full, the discharge through the mouthpiece is twice the discharge when it is running free.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 5. The coefficient of discharge is the ratio of dieoretical discharge to the actual discharge through an orifice.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed)

    • Options
    • A. A m x i
    • B. C m x i
    • C. AC m x i
    • D. mi A x C
    • Discuss
    • 7. Surface tension force is the product of surface tension per unit length and cross-sectional area of flow.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 8. The coefficient of discharge for an external mouthpiece depends upon

    • Options
    • A. velocity of liquid
    • B. pressure of liquid
    • C. area of mouthpiece
    • D. length of mouthpiece
    • Discuss
    • 9. A vessel of 4 m3 contains an oil which weighs 30 kN. The specific weight of the oil is

    • Options
    • A. 4.5 kN/m3
    • B. 6 kN/m3
    • C. 7.5 kN/m3
    • D. 10 kN/m3
    • Discuss
    • 10. A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called

    • Options
    • A. steady flow
    • B. uniform flow
    • C. streamline flow
    • D. turbulent flow
    • Discuss


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