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

  • A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a


  • Options
  • A. notch
  • B. weir
  • C. mouthpiece
  • D. nozzle

  • Correct Answer
  • mouthpiece 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

    • Options
    • A. free
    • B. partially
    • C. full
      • Discuss
    • 2. The coefficient of venturifiume, generally, lies between

    • Options
    • A. 0.3 to 0.45
    • B. 0.50 to 0.75
    • C. 0.75 to 0.95
    • D. 0.95 to 1.0
      • Discuss
    • 3. A hemispherical tank of radius (R) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to lower the level of liquid from (H1) to (H2) will be

    • Options
    • A.
    • B.
    • C.
    • D. none of the above
      • Discuss
    • 4. The discharge through a channel of rectangular section will be maximum, if

    • Options
    • A. its depth is twice the breadth
    • B. its breadth is twice the depth
    • C. its depth is thrice the breadth
    • D. its breadth is thrice the depth
      • Discuss
    • 5. The property of a liquid which enables it to resist tensile stress is called its surface tension.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 6. In a venturiflume, the flow takes place at

    • Options
    • A. atmospheric pressure
    • B. gauge pressure
    • C. absolute pressure
    • D. none of these
      • Discuss
    • 7. A nozzle placed at the end of a water pipe line discharges water at a

    • Options
    • A. low pressure
    • B. high pressure
    • C. low velocity
    • D. high velocity
      • Discuss
    • 8. In order to avoid tendency of separation at throat in a venturimeter, the ratio of the diameter at throat to the diameter of pipe should be

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. If the depth of water in an open channel is less than the critical depth, the flow is called

    • Options
    • A. critical flow
    • B. turbulent flow
    • C. tranquil flow
    • D. torrential flow
      • Discuss
    • 10. A fluid whose viscosity changes with the rate of deformation or shear strain is known as non-newtonian fluid.

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

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