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Hydraulics problems

  • 1. Pick up the correct statement from the following :

  • Options
  • A. For tranquil flow h > 2g or v <
  • B. For critical flow
  • C. For torrential flow h > or v < gh
  • D. None of these.
    • Discuss
  • 2. Pick up the correct statement regarding Borda's mouth piece running full from the following :

  • Options
  • A. Actual velocity at the out let is gH
  • B. Theoretical velocity at the outlet is 2gH
  • C. Coefficient of velocity is 1/2
  • D. Coefficient of contraction is 1
  • E. All the above.
    • Discuss
  • 3. Bernoulli's equation assumes that

  • Options
  • A. fluid is non-viscous
  • B. fluid is homogeneous
  • C. flow is steady
  • D. flow is along the stream line
  • E. all the above.
    • Discuss
  • 4. A pitot tube is used to measure

  • Options
  • A. pressure
  • B. difference in pressure
  • C. velocity of flow
  • D. none of these.
    • Discuss
  • 5. If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.1 kg/cm2, the pressure at a depth of 2.5 m, is

  • Options
  • A. 1 metre of water
  • B. 2 metres of water
  • C. 3 metres of water
  • D. 3.5 metres of water
  • E. 4.0 metres of water.
    • Discuss
  • 6. Unit of kinematic viscosity is

  • Options
  • A. m2/sec
  • B. Newton sec/m2
  • C. Newton sec/m3
  • D. Kg sec/m2.
    • Discuss
  • 7. Euler's equation for motion of liquids, is given by

  • Options
  • A.
  • B.
  • C.
  • D. ?dp + gdz + vdv = 0
    • Discuss
  • 8. Most economical section of a circular channel for maximum discharge

  • Options
  • A. depth of water = 0.95 diameter of circular section
  • B. hydraulic mean depth = 0.286 diameter of circular section
  • C. wetted perimeter = 2.6 diameter of circular section
  • D. wetted perimeter = 2.83 depth of water
  • E. all the above.
    • Discuss
  • 9. Hydrostatic pressure on a dam depends upon its

  • Options
  • A. length
  • B. depth
  • C. shape
  • D. material
  • E. both (b) and (c).
    • Discuss
  • 10. The ratio of maximum velocity to average velocity of viscous fluid through a circular pipe is

  • Options
  • A. 0.5
  • B. 0.75
  • C. 1.25
  • D. 2.00
    • Discuss

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