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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. *1 m head is equivalent to

2 / 50

2. Mouthpieces are used to measure

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

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4. The most economical section of a circular channel for the maximum discharge is when

5 / 50

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

6 / 50

6. The depth of flow after the hydraulic jump is

7 / 50

7. The depth of flow at which the specific energy is minimum is called

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8. *An ideal flow of a liquid obeys

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9. *The continuity equation deals with the law of conservation of

10 / 50

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

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11. 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

12 / 50

12. *Barometers are used to measure

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13. In an open channel flow

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14. The ratio of the mean velocity to the surface velocity in open channels is equal to

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

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16. Cavitations is collapsed by

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17. As per our convenience which one is correct with respect to the dimensionless number?

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18. Reynolds number is the ratio of initial force and

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19. *In flow, the liquid particles may possess

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20. If the forces are due to inertia and gravity, and frictional resistance plays only a minor role, the design of channels is made by comparing

21 / 50

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

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22. Which of the following quantities are dimensionless?

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23. The maximum velocity in an open channel occurs

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

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25. *What affects the quantity of mass of a fluid?

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26. A siphon is an

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27. If the velocity in a fluid flow changes with respect to the length of the direction of the flow, it is called

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28. *If the velocity, pressure, density, etc., change at a point with respect to time, the flow is called

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

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

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

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32. Rotation is defined as the movement of a fluid element in such a way that both of its axes rotate in...

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33. Hydraulic gradient line for an open flow channel is

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34. For the flow of liquid from an open-ended tube (nozzle) leading to the formation of a spray of liquid drops, the number generally is

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35. *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

36 / 50

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

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37. *Surface float is used to measure

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38. For a long pipe, the head loss

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39. A steady uniform flow is through a

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40. "Manning's formula is used for

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

42 / 50

42. *Rotameter is used for measuring

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43. The flow in which each liquid particle has a definite path is called

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44. *A pitot tube is used to measure

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45. Hooke's law for solids is analogous to

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46. Flow in pipes is turbulent if the Reynolds number is

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47. *Stoke is the unit of

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48. *Back water curve is caused if there is a

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

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50. *Surface tension is the force

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