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  • Question

  • When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called


  • Options
  • A. Pascal's law
  • B. Archimede's principle
  • C. principle of floatation
  • D. Bernoulli's theorem

  • Correct Answer
  • Archimede's principle 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. The reciprocal of Euler's number is called Newton number.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 2. Poise is the unit of viscosity in C.G.S. system of units.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 3. When the Mach number is equal to unity, the flow is called sonic flow.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. When the Mach number is more than 6, the flow is called

    • Options
    • A. sub-sonic flow
    • B. sonic flow
    • C. super-sonic flow
    • D. hyper-sonic flow
      • Discuss
    • 5. 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
    • 6. The unit of surface tension is

    • Options
    • A. N/m
    • B. N/m2
    • C. N/m3
    • D. N-m
      • Discuss
    • 7. The total pressure on the top of a closed cylindrical vessel competely filled up with a liquid is

    • Options
    • A. directly proportional to (radius)2
    • B. inversely proportional to (radius)2
    • C. directly proportional to (radius)4
    • D. inversely proportional to (radius)4
      • Discuss
    • 8. The ratio of the inertia force to the __________ is called Euler's number.

    • Options
    • A. pressure force
    • B. elastic force
    • C. surface tension force
    • D. viscous force
      • Discuss
    • 9. The body will float if the force of buoyancy is __________ the weight of the liquid displaced.

    • Options
    • A. equal to
    • B. less than
    • C. more than
      • Discuss
    • 10. A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

    • Options
    • A. H/3
    • B. H/2
    • C. 2H/3
    • D. 3H/4
      • Discuss

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