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Hydraulics Online Test – Paper 3

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Created by 83a36dcfd5c4caff12bc80f0020c9c749e12cbbbdb7c406dc1dd39996cb85836?s=32&d=monsterid&r=g gkaimVikash chaudhary

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  • Total Questions: 50
  • Time Allotted: 50 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
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1. One horsepower is equal to

2 / 50

2. "Maximum efficiency of power transmission through a pipe is

3 / 50

3. Falling drops of water become spheres due to

4 / 50

4. Hydrostatic pressure on a dam depends upon its

5 / 50

5. In the case of vortex flow, the level of water at the center is

6 / 50

6. Water hammer is a phenomenon that occurs

7 / 50

7. With a clinging nappe of a weir, the excess discharge is

8 / 50

8. Discharge over an ogee weir remains the same as that of

9 / 50

9. For any channel section, the specific energy increase with

10 / 50

10. The difference in pressure head measured by a mercury-oil differential manometer for a 20 cm difference of mercury level will be (specific gravity of oil-0.8)

11 / 50

11. A steady uniform flow is through a

12 / 50

12. Liquids

13 / 50

13. *The discharge through a trapezoidal channel is maximum when

14 / 50

14. *The difference between the total energy line and the hydraulic gradient line is

15 / 50

15. *Chazy's formula is given by

16 / 50

16. The error 1% in measuring H will produce a

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17. *Cipolletti weir is a trapezoidal weir having a side slope of

18 / 50

18. The attraction among different particles of the same material is

19 / 50

19. In an open channel flow

20 / 50

20. The profile of rising water on the upstream side of the dam is called

21 / 50

21. *The notch angle for the maximum discharge over a triangular notch is

22 / 50

22. *Surface float is used to measure

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23. *The flow in which the path of individual particles of liquid cross each other is called

24 / 50

24. Super-critical flow occurs in

25 / 50

25. A substance which deforms continuously under the action of shear stress is called

26 / 50

26. An intensifier is used to increase

27 / 50

27. *The magnitude of capillary rise is more in:

28 / 50

28. The minimum head loss will occur in

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29. From a nozzle exposed to the atmosphere, the liquid jet traverses

30 / 50

30. The section of the Jet leaving an orifice, having the minimum cross-section area, is called

31 / 50

31. For a circular channel, the wetted perimeter is given by (where θ=half the angle subtended by the water at the center and R= radius of circular channel)

32 / 50

32. *The upper surface of the notch over which water flows is known as

33 / 50

33. *Uniform flow is said to occur when

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34. *The rise of the water table, which takes place due to the transformation of the unstable shooting flow (super-critical) to the stable streaming is called

35 / 50

35. *The magnitude of water hammer depends upon

36 / 50

36. *The hydraulic ram is a device

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37. Crest of a weir is lower than d/s water level

38 / 50

38. *Losses are more in

39 / 50

39. "Manning's formula is used for

40 / 50

40. The pressure less than atmospheric pressure is known as

41 / 50

41. *The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid if

42 / 50

42. *Hydraulic gradient line (except siphon)

43 / 50

43. *The most economical section of a circular channel for the maximum velocity is when

44 / 50

44. *The specific weight of water 1000 kg/m^3

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45. A siphon is an

46 / 50

46. Open channel flow is

47 / 50

47. If S is the height of the crest above the base of the channel and H is the head of water over the weir, whose length is L and discharge is Q m^3/sec, the velocity of approach Va is

48 / 50

48. Specific weight of sea water is more than that of pure water because of

49 / 50

49. Chazy's formula is used to determine

50 / 50

50. The maximum velocity in an open channel occurs

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