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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. The capillary rise or fall of the liquid is given by

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2. *The term v^2/2g is known as

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3. *The discharge through a rectangular channel is maximum when

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4. Hooke's law for solids is analogous to

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5. An intensifier is used to increase

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

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7. In an open tube, the free surface of mercury remains

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

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

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

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

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12. *Manometers are used to measure

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13. Specific energy of a flowing fluid per unit weight is equal to

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14. *A stepped notch is a combination of

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

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16. 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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17. The minimum head loss will occur in

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18. *If the volume of a liquid weighing 2400 kg is 3 cubic meters, then 0.8 is its:

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

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20. Super-critical flow occurs in

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21. Hydraulic gradient line and total energy line are

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22. Euler's number is the ratio of

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

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24. Total pressure on the top of a closed cylindrical vessel completely filled with liquid is directly proportional to

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

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26. 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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27. 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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28. *If the velocity, pressure, density, etc., do not change at a point with respect to time, the flow is called

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29. If the density of a fluid is constant from point to point in a flow region, it is called

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30. *Uniform flow is said to occur when

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31. *To measure atmospheric pressure, we use

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32. *Molecules of fluids get attracted due to

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33. *The pressure in pipe flow is normally

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

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35. *The hydraulic ram is a device

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

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37. If the density of a fluid changes from point to point in a flow region, it is called

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38. A triangular notch is preferred to a rectangular notch because

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39. The basic head loss in a long pipe is:

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

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41. Specific weight of liquid

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

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43. *The hydraulic ram is a pump that works on

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44. The two depths at which the specific energy is the same are called

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45. Water belongs to

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46. Pick up the correct statement from the following

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47. *A pitot tube is used to measure

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

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49. *Hydraulic gradient is equal to

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50. Gauge pressure is

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