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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 a flowing liquid, a particle may possess

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

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3. A steady uniform flow is through a

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

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5. 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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6. At the vena contracta, the jet has the minimum cross-sectional area, and so the velocity of the liquid at this section will be

7 / 50

7. With a clinging nappe of a weir, the excess discharge is

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8. *If a pitot tube is placed with its nose facing sideways, the liquid

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9. *The imaginary line joining each head of water is called

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

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

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

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14. *The orifice used for low discharge is

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15. Mach number is the ratio of inertia force to

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16. Falling drops of water become spheres due to

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17. *Molecules of fluids get attracted due to

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18. Cavitations is collapsed by

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19. *The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid if

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20. For a long pipe, the head loss

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

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22. *The atmospheric pressure varies with

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23. Find the capillary rise/fall in a glass tube when immersed in mercury with the following given data: surface tension, σ = 0.52 gmf/cm, angle of contact, θ = 130°, S.G. of mercury = 13.6, diameter of the pipe = 2.5 mm.

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24. *Which of the following statements is valid?

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

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26. An intensifier is used to increase

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27. A fluid particle may possess the displacement of

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

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29. Cavitations in flowing fluid occurs when

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30. *Cipolleti weir is a

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31. A rise or fall of liquid in a glass tube of a very small diameter when dipped is

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32. *Losses are more in

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33. *Stoke is the unit of

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34. *If a pitot tube is placed with its nose facing downstream, the liquid

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35. *Viscosity of a liquid

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36. In fluids, steady flow occurs when

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

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38. *In flow, the liquid particles may possess

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39. *To measure atmospheric pressure, we use

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40. The maximum velocity in an open channel occurs

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41. *A pitot tube is used to measure

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42. *Rotameter is used for measuring

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43. *The equation of continuity of fluids is applicable only if

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44. *Uniform flow is said to occur when

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45. In the case of vortex flow, the level of water at the center is

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46. *The pressure in pipe flow is normally

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

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48. Pick up the correct statement from the following

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49. *Water cushion is used to

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

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