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  • Question

  • The dimensional formula of force is


  • Options
  • A. MLT-2
  • B. M-1LT2
  • C. ML-2T
  • D. M-1L2T-2
  • E. none of these.

  • Correct Answer
  • MLT-2 

    • Hydraulics problems

    Search Results

    • 1. The flow is called rotational if its velocity normal to the plane of area is equal to

    • Options
    • A. angular velocity vector
    • B. twice the angular velocity vector
    • C. thrice the angular velocity vector
    • D. none of these.
      • Discuss
    • 2. Hydraulic grade line

    • Options
    • A. remains above the centre line of conduit
    • B. remains below the centre line of conduit
    • C. remains parallel to the centre line of conduit
    • D. may be above or below the centre line of conduit.
      • Discuss
    • 3. Energy equation is usually applicable to

    • Options
    • A. non-uniform flow
    • B. turbulent flow
    • C. laminar flow
    • D. steady flow.
      • Discuss
    • 4. Flow of water in pipes of diameter more than 3 metres, can be measured by

    • Options
    • A. pitot tube
    • B. venturimeter
    • C. orifice plate
    • D. rotameter.
      • Discuss
    • 5. For a most economical rectangular channel, the hydraulic mean depth, is equal to

    • Options
    • A. the depth of flow
    • B. half the depth of flow
    • C. one-third depth of flow
    • D. None of these.
      • Discuss
    • 6. To avoid the tendency of separation of liquid flow, the most suitable ratio of the diameters of the throat and the pipe, is

    • Options
    • A. 1/4 to 1/8
    • B. 1/3 to 1/2
    • C. 1/2 to 3/4.
    • D. none of these.
      • Discuss
    • 7. Specific weight of sea water is more than that of pure water because of

    • Options
    • A. dissolved air
    • B. dissolved salts
    • C. suspended matter
    • D. all the above.
      • Discuss
    • 8. On a flow net diagram, the distance between two consecutive steam lines at two successive sections are 1 cm and 0.5 cm respectively. If the velocity at the first section is 1 m/sec, the velocity at the second is

    • Options
    • A. 1.0 m/sec
    • B. 0.5 m/sec
    • C. 2.0 m/sec
    • D. 2.5 m/sec
    • E. 3 m/sec.
      • Discuss
    • 9. Discharge with velocity of approach, over a rectangular weir is

    • Options
    • A. Cd x L x 2g [(H + ha)3/2 + ha3/2]
    • B. Cd x L x 2g [(H + ha)3/2 - ha3/2]
    • C. Cd x L x 2g [(H - ha)3/2 + ha3/2]
    • D. Cd x L x 2g [(H - ha)3/2 - ha3/2]
      • Discuss
    • 10. Hydraulic radius is equal to

    • Options
    • A. area divided by the square of wetted perimeter
    • B. area divided by wetted perimeter
    • C. wetted perimeter divided by area
    • D. square root of the area.
      • Discuss

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