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

  • An air vessel is provided at the summit in a syphon to


  • Options
  • A. avoid interruption in the flow
  • B. increase discharge
  • C. increase velocity
  • D. maintain pressure difference

  • Correct Answer
  • avoid interruption in the flow 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. A compound pipe of diameter d1, d2 and d3 having lengths l1, l2 and l3 is to be replaced by an equivalent pipe of uniform diameter d and of the same length (l) as that of the compound pipe. The size of the equivalent pipe is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. The length of the divergent cone in a venturimeter is __________ that of the convergent cone.

    • Options
    • A. equal to
    • B. double
    • C. three to four times
    • D. five to six times
      • Discuss
    • 3. If a body floating in a liquid does not return back to its original position, and heels farther "away when given a small angular displacement, the body is said to be in neutral equilibrium.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 4. The volume per unit mass of a liquid is called specific volume.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 5. Reynold's number is the ratio of inertia force to

    • Options
    • A. pressure force
    • B. elastic force
    • C. gravity force
    • D. viscous force
      • Discuss
    • 6. The viscosity of a liquid is due to cohesion of its particles.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 7. The unit of dynamic viscosity in S.I. units is

    • Options
    • A. N-m/s2
    • B. N-s/m2
    • C. poise
    • D. stoke
      • Discuss
    • 8. The velocity corresponding to Reynold number of 2800, is called

    • Options
    • A. sub-sonic velocity
    • B. super-sonic velocity
    • C. lower critical velocity
    • D. higher critical velocity
      • Discuss
    • 9. A flow in which the viscosity of fluid is dominating over the inertia force is called

    • Options
    • A. steady flow
    • B. unsteady flow
    • C. laminar flow
    • D. turbulent flow
      • Discuss
    • 10. Laminar flow __________ place at very low velocities.

    • Options
    • A. takes
    • B. does not take
      • Discuss

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