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Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics See What Others Are Saying!
  • Question

  • In a free nappe,


  • Options
  • A. the pressure below the nappe is atmospheric
  • B. the pressure below the nappe is negative
  • C. the pressure above the nappe is atmospheric
  • D. the pressure above the nappe is negative

  • Correct Answer
  • the pressure below the nappe is atmospheric 

    • More questions

    • 1. If a tyre is designated as 175/65 R14 82 S, then the aspect ratio for the tyre is

    • Options
    • A. 175
    • B. 65
    • C. 14
    • D. 82
      • Discuss
    • 2. A petrol engine, during suction stroke draws

    • Options
    • A. air only
    • B. petrol only
    • C. a mixture of petrol and air
      • Discuss
    • 3. Which of the following is an example of laminar flow?

    • Options
    • A. Under ground flow
    • B. Flow past tiny bodies
    • C. Flow of oil in measuring instruments
    • D. all of these
      • Discuss
    • 4. The primary fuel used in nuclear power plants is

    • Options
    • A. U235
    • B. U238
    • C. Pu239
    • D. Pu233
      • Discuss
    • 5. In drilling mild steel and brass, the point angle of a drill is 118°.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The water tubes in a Babcock and Wilcox boiler are

    • Options
    • A. vertical
    • B. horizontal
    • C. inclined
      • Discuss
    • 7. In TIG arc welding, the welding zone is shielded by an atmosphere of

    • Options
    • A. helium gas
    • B. argon gas
    • C. either (a) or (b)
    • D. none of these
      • Discuss
    • 8. For a self locking machine, the efficiency must be

    • Options
    • A. equal to 50%
    • B. less than 50%
    • C. greater than 50%
    • D. 100%
      • Discuss
    • 9. The Parsons' reaction turbine has

    • Options
    • A. only moving blades
    • B. only fixed blades
    • C. identical fixed and moving blades
    • D. fixed and moving blades of different shape
      • Discuss
    • 10. Galvanising is a

    • Options
    • A. zinc diffusion process
    • B. process of coating zinc by hot dipping
    • C. process used for making thin phosphate coating on steel
    • D. none of the above
      • Discuss

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