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

  • The most efficient section of a channel is


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

  • Correct Answer
  • trapezoidal 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. The sheet of water flowing over a notch or a weir is known as

    • Options
    • A. sill or crest
    • B. nappe or vein
    • C. orifice
    • D. none of these
      • Discuss
    • 2. The height of a water column equivalent to a pressure of 0.15 MPa is

    • Options
    • A. 15.3 m
    • B. 25.3 m
    • C. 35.3 m
    • D. 45.3 m
      • Discuss
    • 3. The flow at critical depth in an open channel is called torrential flow.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 4. The dynamic viscosity of the liquid __________ with rise in temperature.

    • Options
    • A. remain unaffected
    • B. increases
    • C. decreases
      • Discuss
    • 5. Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as

    • Options
    • A. lift
    • B. drag
    • C. stagnation pressure
    • D. bulk modulus
      • Discuss
    • 6. When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as

    • Options
    • A. centre of pressure
    • B. centre of gravity
    • C. centre of buoyancy
    • D. metacentre
      • Discuss
    • 7. A flow in which the quantity of liquid flowing per second is not constant, is called

    • Options
    • A. streamline flow
    • B. turbulent flow
    • C. steady flow
    • D. unsteady flow
      • Discuss
    • 8. The force per unit length is the unit of

    • Options
    • A. surface tension
    • B. compressibility
    • C. capillarity
    • D. viscosity
      • Discuss
    • 9. In the manufacturing of lead shots, the property of surface tension is utilised.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 10. In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as that of the atmosphere.

    • Options
    • A. True
    • B. False
      • Discuss

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