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  • Question

  • The height of water level in a tank above the centre of a circular hole 2.5 cm in diameter is 50 m. The velocity of water flowing through the hole, is


  • Options
  • A. 31.1 m/sec
  • B. 31.2 m/sec
  • C. 31.3 m/sec
  • D. 31.4 m/sec.

  • Correct Answer
  • 31.3 m/sec 

    • Hydraulics problems

    Search Results

    • 1. Gauge pressure is

    • Options
    • A. absolute pressure - atmospheric pressure
    • B. absolute pressure + atmospheric pressure
    • C. atmospheric pressure - absolute pressure
    • D. none of these.
      • Discuss
    • 2. A steady uniform flow is through

    • Options
    • A. a long pipe at decreasing rate
    • B. a long pipe at constant rate
    • C. an expanding tube at constant rate
    • D. an expanding tube at increasing rate
    • E. a long pipe at increasing rate.
      • Discuss
    • 3. Cavitation is caused by

    • Options
    • A. Low pressure
    • B. High pressure
    • C. Low velocity
    • D. High velocity
    • E. None of these.
      • Discuss
    • 4. Hydraulic gradient is equal to difference in water surfaces

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. The discharge over a Cipolletti weir of length 2.185 m when the head over the weir is 1 m, is

    • Options
    • A. 2.0 m3
    • B. 2.5 m3
    • C. 3.0 m3
    • D. 4.0 m3.
      • Discuss
    • 6. In order to avoid capillary correction, the minimum diameter of a manometer used for measuring pressure, should be

    • Options
    • A. 2 mm
    • B. 4 mm
    • C. 6 mm
    • D. 8 mm
    • E. 10 mm.
      • Discuss
    • 7. If cohesion between the molecules of a fluid is more than adhesion between the fluid and glass, the free level of fluid in a dipped glass tube will be

    • Options
    • A. higher than the surface of liquid
    • B. same as the surface of liquid
    • C. lower than the surface of liquid
    • D. none of these.
      • Discuss
    • 8. Euler's equation for the motion of liquids assumes that

    • Options
    • A. fluid is viscous
    • B. fluid is homogeneous and incompressible
    • C. velocity of flow is non-uniform over the section
    • D. flow is unsteady along the stream line.
      • Discuss
    • 9. Mach number is the ratio of inertia force to

    • Options
    • A. viscosity
    • B. surface tension
    • C. gravitational force
    • D. elasticity.
      • Discuss
    • 10. If u, v, w are the components of the velocity v of a moving particle, the equation represents

    • Options
    • A. one diamensional flow
    • B. two dimensional flow
    • C. three dimensional flow
    • D. none of these.
      • Discuss

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