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

  • 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

  • Correct Answer
  • pressure force 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. 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
    • 2. The unit of surface tension is

    • Options
    • A. N/m
    • B. N/m2
    • C. N/m3
    • D. N-m
      • Discuss
    • 3. 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
      • Discuss
    • 4. The reciprocal of Euler's number is called Newton number.

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

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 6. 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
    • 7. 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
    • 8. Kinematic viscosity is the product of dynamic viscosity and the density of the liquid.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 9. The top of the weir over which the water flows is known as

    • Options
    • A. sill or crest
    • B. nappe or vein
    • C. orifice
    • D. none of these
      • Discuss
    • 10. A notch is, usually, made of a metallic plate.

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

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