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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. Hydrostatic pressure on a dam depends upon its

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

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3. Gauge pressure is

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

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

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

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

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

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9. 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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10. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a rectangular notch is

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

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

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13. *Pascal's law states that pressure at a point is equal in all directions

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

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15. Which of the following is the example of laminar flow?

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

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17. In the case of a broad-crested weir, the depth of water h at the end of the still is given by

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

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

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20. *Piezometers are used to measure

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21. *The float method is used to measure

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22. A fluid particle may possess the displacement of

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23. 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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24. *The atmospheric pressure varies with

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

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26. *The rate of flow through a V-notch varies as:

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27. *Which of the following statements is valid?

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28. *An independent mass of a fluid does not possess

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29. *Bernoulli's equation assumes that

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30. *Head loss increases with

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31. *Hydraulic gradient line (except siphon)

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

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33. 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.)

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

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

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36. *An orifice is called a large orifice if the water head is

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37. *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

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38. 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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39. 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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40. 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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41. The minimum head loss will occur in

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

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43. *Uniform flow is said to occur when

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44. An intensifier is used to increase

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45. *Losses are more in

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46. For uniform flow in the channel

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

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48. The most efficient channel section is

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

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50. *To measure atmospheric pressure, we use

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