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  • Question

  • When a body is totally or partially immersed in a fluid, it is buoyed up by a force equal to


  • Options
  • A. weight of the body
  • B. weight of the fluid displaced by the body
  • C. weight of the body and fluild displaced by the body
  • D. difference of weights of the fluid displaced and that of the body
  • E. none of these.

  • Correct Answer
  • weight of the fluid displaced by the body 

    • Hydraulics problems

    Search Results

    • 1. Highest dam in India, is

    • Options
    • A. Bhakra dam
    • B. Hirakund dam
    • C. Nagarjuna Sagar dam
    • D. Iddiki dam.
      • Discuss
    • 2. Discharge Q over a rectangular weir of length L and height H, is given by the equation

    • Options
    • A. Q = 2/3 Cd2g LH3/2
    • B. Q = 2/3 CdL H2gH
    • C.
    • D. all the above.
      • Discuss
    • 3. Critical depth (h) of a channel, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. While applying the Bernoulli's equation = total head, the work any section done on the flow system, if any

    • Options
    • A. is added on the right side of the equation
    • B. is added on the left side of the equation
    • C. is ignored
    • D. none of these.
      • Discuss
    • 5. An independent mass of a fluid does not posses

    • Options
    • A. elevation energy
    • B. kinetic energy
    • C. pressure energy
    • D. none of these.
      • Discuss
    • 6. Time of emptying liquid from a hemispherical vessel through an orifice at its bottom, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. The horizontal component of the force on a curved surface is equal to

    • Options
    • A. weight of liquid vertically below the curved surface
    • B. force on a vetical projection of the curved surface
    • C. product of pressure at its centroid and the area
    • D. weight of liquid retained by the curved area.
      • Discuss
    • 8. Maximum efficiency of transmission of power through a pipe, is

    • Options
    • A. 25%
    • B. 33.3%
    • C. 50%
    • D. 66.67%.
      • Discuss
    • 9. A short tube mouthpiece will not run full at its outlet if the head under which the orifice works, is

    • Options
    • A. less than 12.2 m of the water
    • B. more than 12.2 m of the water
    • C. equal of 12.2 m of water
    • D. none of these.
      • Discuss
    • 10. The most familiar form of Bernoulli's equation, is

    • Options
    • A.
    • B.
    • C. = constant head
    • D. none of these.
      • Discuss

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