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  • Question
  • The total head of a liquid particle in motion is equal to


  • Options
  • A. pressure head + kinetic head + potential head
  • B. pressure head - (kinetic head + potential head)
  • C. potential head - (pressure head + kinetic head)
  • D. kinetic head - (pressure head + potential head)

  • Correct Answer
  • pressure head + kinetic head + potential head 


  • Hydraulics and Fluid Mechanics problems


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    • 1. The quantity of a liquid flowing per second through a section of a pipe or a channel is called discharge and is measured in cumecs (m3/s).

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. The divergent portion of a venturimeter is made longer than convergent portion in order to

    • Options
    • A. avoid the tendency of breaking away the stream of liquid
    • B. to minimise frictional losses
    • C. both (a) and (b)
    • D. none of these
    • Discuss
    • 3. The pressure at a stagnation point is always low.

    • Options
    • A. Agree
    • B. Disagree
    • Discuss
    • 4. 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
    • 5. 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
    • 6. The force of buoyancy is always __________ the weight of the liquid displaced by the body.

    • Options
    • A. equal to
    • B. less than
    • C. more than
    • Discuss
    • 7. The velocity of liquid flowing through an orifice varies with the available head of the liquid.

    • Options
    • A. Agree
    • B. Disagree
    • Discuss
    • 8. A moving fluid mass may be brought to a static equilibrium position, by aplying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called

    • Options
    • A. Pascal's law
    • B. Archimede's principle
    • C. D-Alembert's principle
    • D. none of these
    • Discuss
    • 9. The specific gravity of water is taken as

    • Options
    • A. 0.001
    • B. 0.01
    • C. 0.1
    • D. 1
    • Discuss
    • 10. The total pressure on the bottom of a closed cylindrical vessel completely filled up with a liquid is the sum of the total centrifugal pressure and the weight of the liquid in the vessel.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss


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