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Hydraulics problems

  • 1. Inside pressure in a hollow soap bubble in the air is : (where d is the diameter of the bubble)

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 2. If the volume of a liquid weighing 3000 kg is 4 cubic metres, 0.75 is its

  • Options
  • A. specific weight
  • B. specific mass
  • C. specific gravity
  • D. none of these.
    • Discuss
  • 3. The maximum vacuum created at the summit of a syphon is

  • Options
  • A. 2.7 m of water
  • B. 7.4 m of water
  • C. 5.5 m of water
  • D. none.
    • Discuss
  • 4. The Empirical formula Civil Engineering Hydraulics: The Empirical formula for discharge over large rectangular weirs, is known as

  • Options
  • A. Francis formula
  • B. Bazin formula
  • C. Rehbook formula
  • D. Kutter's formula.
    • Discuss
  • 5. A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the horizontal reaction at B is
    Civil Engineering Hydraulics: A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the

  • Options
  • A. 10,000 kgf
  • B. 15,000 kgf
  • C. 20,000 kgf
  • D. 18,000 kgf.
    • Discuss
  • 6. The moment of inertia of a floating body along its longitudinal axis and the volume of water displaced by it are I and V respectively. The height of the metacentre above centre of buoyancy of the body, is

  • Options
  • A.
  • B.
  • C.
  • D.
  • E.
    • Discuss
  • 7. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if

  • Options
  • A. area is horizontal
  • B. area is vertical
  • C. area is inclined
  • D. all the above.
    • Discuss
  • 8. The side slope of Cipolletti weir is generally kept

  • Options
  • A. 1 to 4
  • B. 1 to 3
  • C. 1 to 2
  • D. 1 : 5
    • Discuss
  • 9. A tank 4m x 3m x 2m containing an oil of specific gravity 0.83 is moved with an acceleration g/2 m sec2. The ratio of the pressures at its bottom when it is moving vertically up and down, is

  • Options
  • A. 2
  • B. 3
  • C. 1/2
  • D. 1/3
    • Discuss
  • 10. A piezometer opening in pipes measures

  • Options
  • A. velocity head
  • B. static pressure
  • C. total pressure
  • D. negative static pressure.
    • Discuss

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