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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. Velocity of flow may be determined using:

2 / 50

2. The head of water representing in the case of HGL line is known as

3 / 50

3. The upward water pressure at the base of the structure is called

4 / 50

4. *Surface tension is the force

5 / 50

5. *Barometers are used to measure

6 / 50

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

7 / 50

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

8 / 50

8. Total head of a particle in motion is the sum of

9 / 50

9. Critical depth (he) is given by (where q= rate of flow per unit width of channel)

10 / 50

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

11 / 50

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

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

13 / 50

13. Hooke's law for solids is analogous to

14 / 50

14. *Surface float is used to measure

15 / 50

15. The discharge through a V-notch weir is directly proportional to:

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16. Hydraulic gradient line for an open flow channel is

17 / 50

17. *Variation in volume of liquid with variation in pressure is called

18 / 50

18. *Orifice-meter is used to measure:

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19. Water hammer is a phenomenon that occurs

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20. Falling drops of water become spheres due to

21 / 50

21. *The hydraulic ram is a device

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22. 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)

23 / 50

23. *The width of a weir with end contraction is

24 / 50

24. *The upper surface of the weir over which water flows is known as:

25 / 50

25. Gauge pressure is

26 / 50

26. *A stepped notch is a combination of

27 / 50

27. *Hydraulic gradient is equal to

28 / 50

28. *The wetted perimeter of a channel is given by

29 / 50

29. In an inclined pipe, the pressure difference at its two ends is due to

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30. *The main assumption of Bernoulli's equation is

31 / 50

31. When the pipes are connected in parallel, the total loss of head

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

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

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34. *1 m head is equivalent to

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35. *Cipolleti weir is a

36 / 50

36. *The discharge passing through the crest having a length of 1.25m, a height of the flow of water 0.25m, and Cd = 0.035 is

37 / 50

37. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a triangular notch is

38 / 50

38. A rise or fall of liquid in a glass tube of a very small diameter when dipped is

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39. A steady uniform flow is through a

40 / 50

40. An oil of specific gravity 0.7 and pressure 0.14 kgf/cm^2 will have the height of oil as

41 / 50

41. The pressure difference between inside and outside of a droplet of water is given by (Where σ is surface tension and d is the diameter of the droplet.)

42 / 50

42. A siphon is used

43 / 50

43. The line joining the points to which the liquid rises in vertical piezometer tubes fitted at different cross-sections of a conduit is known as

44 / 50

44. The maximum velocity in an open channel occurs

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45. *Venturimeter is used to measure

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46. *An ideal flow of a liquid obeys

47 / 50

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

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48. Super-critical flow occurs in

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49. When the pipes are connected in series, the total rate of flow

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50. 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

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