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

  • A nozzle is generally made of


  • Options
  • A. cylindrical shape
  • B. convergent shape
  • C. divergent shape
  • D. convergent-divergent shape

  • Correct Answer
  • convergent shape 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. The discharge in an open channel corresponding to critical depth is

    • Options
    • A. zero
    • B. minimum
    • C. maximum
      • Discuss
    • 2. A weir, generally, used as a spillway of a dam is

    • Options
    • A. narrow crested weir
    • B. broad crested weir
    • C. Ogee weir
    • D. submerged weir
      • Discuss
    • 3. A fluid which obeys the Newton's law of viscosity is termed as

    • Options
    • A. real fluid
    • B. ideal fluid
    • C. newtonian fluid
    • D. non-newtonian fluid
      • Discuss
    • 4. 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
    • 5. 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
    • 6. According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. The separation of flow occurs when the hydrodynamic boundary layer thickness is reduced to zero.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 8. When the flow in an open channel is gradually varied, the flow is said to be

    • Options
    • A. steady uniform flow
    • B. steady non-uniform flow
    • C. unsteady uniform flow
    • D. unsteady non-uniform flow
      • Discuss
    • 9. The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

    • Options
    • A. equal to
    • B. one-half
    • C. three fourth
    • D. double
      • Discuss
    • 10. The pressure at a stagnation point is always low.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss

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