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  • Question

  • For maximum power transmission through a nozzle, (where hf is the head lost due to friction)


  • Options
  • A. For maximum power transmission through a nozzle, (where hf is the head lost due to friction)
  • B. For maximum power transmission through a nozzle, (where hf is the head lost due to friction)
  • C. For maximum power transmission through a nozzle, (where hf is the head lost due to friction)
  • D. For maximum power transmission through a nozzle, (where hf is the head lost due to friction)

  • Correct Answer
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    • Hydraulics problems

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    • 1. In a short cylindercial external mouthpiece, the venacontracta occurs at a distance from the outlet of orifice equal to

    • Options
    • A. diameter of the orifice
    • B. one-fourth the diameter of the orifice
    • C. one-third the diameter of the orifice
    • D. two-third the diameter of the orifice
      • Discuss
    • 2. To replace a pipe of diameter D by n parallel pipes of diameter d, the formula is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 3. If H is the depth of water retained by a vertical wall, the height of centre of pressure above the bottom is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. The gases are considered incompressible if Match number is

    • Options
    • A. equal to 1.0
    • B. equal to 1.5
    • C. is more than 0.5
    • D. less than 0.2
      • Discuss
    • 5. The flow in a channel is said to be non-uniform, if

    • Options
    • A. free water surface of an open channel is not parallel to the bed of channel
    • B. head needed to overcome frictional reistance is less than the drop in elevation of channel bed
    • C. head needed to overcome frictional resistance is more than the drop in elevation of channel bed
    • D. all the above.
      • Discuss
    • 6. The hydrostatic force acts through

    • Options
    • A. centre of pressure
    • B. centre of top edge
    • C. centre of bottom edge
    • D. metacentre.
      • Discuss
    • 7. An open container filled with water is moved vertically upward with a uniform linear acceleration. The pressure at its bottom will be

    • Options
    • A. greater than static pressure
    • B. equal to static pressure
    • C. lesser than static pressure
    • D. none of these.
      • Discuss
    • 8. Mass density of liquid (?) is given by

    • Options
    • A.
    • B.
    • C.
    • D. all the above.
      • Discuss
    • 9. The flow in which each liquid particle has a definite path and the paths of adjacent particles do not cross each other, is called

    • Options
    • A. stream line flow
    • B. uniform flow
    • C. steady flow
    • D. turbulent flow.
      • Discuss
    • 10. In an inclined position, a venturimeter records

    • Options
    • A. more reading
    • B. less reading
    • C. same reading
    • D. none of these.
      • Discuss

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