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Home Mechanical Engineering Hydraulics and Fluid Mechanics Comments

  • Question
  • The highest efficiency is obtained with a channel of __________ section.


  • Options
  • A. circular
  • B. square
  • C. rectangular
  • D. trapezoidal

  • Correct Answer
  • trapezoidal 


  • Hydraulics and Fluid Mechanics problems


    Search Results


    • 1. The centre of pressure acts __________ the centre of gravity of immersed surface.

    • Options
    • A. at
    • B. above
    • C. below
    • Discuss
    • 2. One cubic metre of water weighs

    • Options
    • A. 100 litres
    • B. 250 litres
    • C. 500 litres
    • D. 1000 litres
    • Discuss
    • 3. 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
    • Discuss
    • 4. 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
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. The mass per unit volume of a liquid at a standard temperature and pressure is called

    • Options
    • A. specific weight
    • B. mass density
    • C. specific gravity
    • D. none of these
    • Discuss
    • 9. In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be

    • Options
    • A. running full
    • B. running free
    • C. partially running full
    • D. partially running free
    • Discuss
    • 10. The shear stress between the two liquid layers is __________ proportional to the distance between two layers.

    • Options
    • A. directly
    • B. indirectly
    • Discuss


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