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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. For a long pipe, the head loss

2 / 50

2. Practical fluids possess

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3. *The condition for the maximum velocity and discharge is given by (closed flow)

4 / 50

4. The most efficient channel section is

5 / 50

5. *Surface float is used to measure

6 / 50

6. The term z is known as

7 / 50

7. In an open channel flow

8 / 50

8. The multiplying factor for converting one poise into MKS unit of dynamic viscosity is

9 / 50

9. In the case of leveling by a level pipe, the level is indicated by

10 / 50

10. *Hydraulic gradient line (except siphon)

11 / 50

11. To avoid an interruption in the flow of a siphon, the air vessel is provided

12 / 50

12. *A pitot tube is used to measure

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13. A siphon is an

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

15 / 50

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

16 / 50

16. If the pressure is applied to the surface of a liquid, the liquid transmits the pressure equally in all directions is given by

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17. *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

18 / 50

18. *Total energy line (T.E.L) represents the sum of

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19. *The floating method is used for the measurement of

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20. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as:

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21. If the volume of a liquid weighing 3000 kg is 4 cubic meters, then 0.75 is its

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22. In a flowing liquid, a particle may possess

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23. Open channel flow is

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24. If fluid or flow parameters at any given instant remain the same at every point in space, it is called:

25 / 50

25. Mach number is the ratio of inertia force to

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26. The imaginary line drawn such that the tangents at its all points indicate the direction of the velocity of the fluid particle at each point is called

27 / 50

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

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28. Head loss due to friction in a pipe is given by the Darcy-Weisbach equation

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29. The inlet length of a venturimeter

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30. The numerical value of vorticity is.....of the rotation

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31. Mouthpieces are used to measure

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32. *To measure very low pressure, we use:

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33. 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

34 / 50

34. *Cipolleti weir is a

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35. *The actual velocity through an orifice is........... than the theoretical velocity.

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36. *The energy possessed by a fluid by virtue of its existing pressure is called

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37. 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

38 / 50

38. *Cavitations is caused by

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39. Super-critical flow occurs in

40 / 50

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

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41. *Venturimeter is used to measure

42 / 50

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

43 / 50

43. The Manning's formula for flow in an open channel is given by

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44. The depth of flow after the hydraulic jump is

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45. If the fluid particles move in straight lines and all the lines are parallel to the surface, the flow is called

46 / 50

46. *Orifice-meter is used to measure:

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47. If the Froude number in open channel flow is equal to 1.0, the flow is called

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48. Pick up the correct statement from the following

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49. Liquids

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50. Velocity of flow may be determined using:

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