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

  • According to Manning's formula, the discharge through an open channel is (where M = Manning's constant)


  • Options
  • A. A x M x m1/2 x i2/3
  • B. A x M x m2/3 x i1/2
  • C. A1/2 x M2/3 x m x i
  • D. A2/3 x M1/3 x m x i

  • Correct Answer
  • A x M x m2/3 x i1/2 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. A body floating in a liquid is said to be not in equilibrium if its metacentre lies below its centre of gravity.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 2. The pressure of air __________ with the increase of height from the surface of the earth.

    • Options
    • A. does not change
    • B. decreases
    • C. increases
      • Discuss
    • 3. The viscosity of water at 20°C is

    • Options
    • A. one stoke
    • B. one centistroke
    • C. one poise
    • D. one centipoise
      • Discuss
    • 4. The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, ? = Viscosity of the liquid, and w = Specific weight of the flowing liquid)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. A fluid having no viscosity is known as

    • Options
    • A. real fluid
    • B. ideal fluid
    • C. newtonian fluid
    • D. non-newtonian fluid
      • Discuss
    • 6. The intensity of pressure at any point, in a liquid, is __________ to the depth of liquid from the surface.

    • Options
    • A. equal
    • B. directly proportional
    • C. inversely proportional
      • Discuss
    • 7. The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece.

    • Options
    • A. less than
    • B. more than
      • Discuss
    • 8. The shear stress-strain graph for a non-newtonian fluid is a curve.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 9. According to Bernoulli's equation

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called

    • Options
    • A. weir
    • B. notch
    • C. orifice
    • D. none of these
      • Discuss

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