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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. In an open channel flow

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

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3. Specific weight of sea water is more than that of pure water because of

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4. Liquids

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5. *To measure atmospheric pressure, we use

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6. Hydraulic gradient line for an open flow channel is

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

8 / 50

8. Pick up the correct statement from the following

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9. If the total head of the nozzle of a pipe is 37.5m and the discharge is 1 cubic meter per second, then the power generated is

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

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11. The total energy of a liquid in motion is equal to:

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12. In an open channel flow

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13. 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

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

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15. The thickness of a sharp-crested weir is kept less than

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16. *Manometers are used to measure

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

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

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

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20. For a circular channel, the wetted perimeter is given by (where θ=half the angle subtended by the water at the center and R= radius of circular channel)

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21. *The phenomenon occurring in an open channel when a rapidly flowing stream abruptly changes to a slowly flowing stream, causing a distinct rise of the liquid surface, is

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22. If the specific gravity of oil is 0.7, then find the density of oil

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

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

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25. Cavitations is collapsed by

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26. The viscosity of gases varies with temperature

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

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29. *Which of the following statements is valid?

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30. In an inclined position, a venturimeter records

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31. *The hydraulic radius is equal to

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32. Open channel flow is

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

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

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35. *The orifice used for low discharge is

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36. Water hammer is a phenomenon that occurs

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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

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38. Water belongs to

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39. *If the velocity in a fluid flow does not change with respect to the length of the direction of flow, it is called

40 / 50

40. Practical fluids possess

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41. *Rotameter is used for measuring

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42. For the same specific force, the two depths at which the same discharge occurs are called

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43. *Head loss increases with

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44. *A pitot tube is used to measure

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

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46. If the fluid particles move in a zig-zag way, the flow is called

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

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48. *Orifice-meter is used to measure:

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49. *In flow, the liquid particles may possess

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

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