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Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics Comments
  • Question

  • The critical depth meter is used to measure


  • Options
  • A. velocity of flow in an open channel
  • B. depth of flow in an open channel
  • C. hydraulic jump
  • D. depth of channel

  • Correct Answer
  • hydraulic jump 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. When a body is placed over a liquid, it is subjected to gravitational force and upthrust of the liquid.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A flow through an expanding tube at constant rate is called

    • Options
    • A. steady uniform flow
    • B. steady non-uniform flow
    • C. unsteady uniform flow
    • D. unsteady non-uniform flow
      • Discuss
    • 3. The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

    • Options
    • A. decreases
    • B. increases
      • Discuss
    • 4. The length of a liquid stream while flowing over a weir __________ at the ends of the sill.

    • Options
    • A. expands
    • B. does not change
    • C. contracts
      • Discuss
    • 5. The depth of centre of pressure lor an immersed surface inclined at an angle ? with the liquid surface lies at a distance equal to __________ the centre of gravity.

    • Options
    • A. below
    • B. above
    • C. below
    • D. above
      • Discuss
    • 6. One cubic metre of water weighs

    • Options
    • A. 100 litres
    • B. 250 litres
    • C. 500 litres
    • D. 1000 litres
      • Discuss
    • 7. The centre of pressure acts __________ the centre of gravity of immersed surface.

    • Options
    • A. at
    • B. above
    • C. below
      • Discuss
    • 8. The highest efficiency is obtained with a channel of __________ section.

    • Options
    • A. circular
    • B. square
    • C. rectangular
    • D. trapezoidal
      • Discuss
    • 9. The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

    • Options
    • A. wH/2
    • B. wH
    • C. wH2/2
    • D. wH2/4
      • Discuss
    • 10. A body floating in a liquid is said to be in neutral equilibrium, if its metacentre

    • Options
    • A. coincides with its centre of gravity
    • B. lies above its centre of gravity
    • C. lies below its centre of gravity
    • D. lies between the centre of buoyancy and centre of gravity
      • Discuss

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