logo

CuriousTab

CuriousTab

Discussion


Home Mechanical Engineering Hydraulics and Fluid Mechanics Comments

  • Question
  • Surface tension force is the product of surface tension per unit length and cross-sectional area of flow.


  • Options
  • A. Correct
  • B. Incorrect

  • Correct Answer
  • Incorrect 


  • Hydraulics and Fluid Mechanics problems


    Search Results


    • 1. 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
    • 2. The velocity of flow is same at all points in the cross-section of a channel.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. An average value of coefficient of velocity is

    • Options
    • A. 0.62
    • B. 0.76
    • C. 0.84
    • D. 0.97
    • Discuss
    • 4. 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
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

    • Options
    • A. double
    • B. four times
    • C. eight times
    • D. sixteen times
    • Discuss
    • 10. The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

    • Options
    • A. 0.34 times
    • B. 0.67 times
    • C. 0.81 times
    • D. 0.95 times
    • Discuss


    Comments

    There are no comments.

Enter a new Comment