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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 rate of flow through a venturimeter varies as

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2. In the case of leveling by a level pipe, the level is indicated by

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

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4. In an open channels the analysis of a sugar is done by using

5 / 50

5. The maximum velocity in an open channel occurs

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6. An oil of specific gravity 0.7 and pressure 0.14 kgf/cm^2 will have the height of oil as

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7. A fluid particle may possess the displacement of

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8. *1 m head is equivalent to

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

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10. The minimum head loss will occur in

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

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

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

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

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

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17. Cavitations is collapsed by

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18. *Differential manometers are used to measure

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19. 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

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

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21. Hydraulic gradient line and total energy line are

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22. Pick up the correct statement from the following

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

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

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

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

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27. *The pressure in pipe flow is normally

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28. To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m^3/sec, the length of the weir will be (Cd = 0.62)

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29. The hydrostatic force exerted by 2 m deep water on the gate downstream is equal to

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30. The most efficient channel section is

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31. Velocity of flow may be determined using:

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32. *Hydraulic gradient line (except siphon)

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

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34. *Bernoulli's equation assumes that

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35. Poise is the unit of

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36. *The main assumption of Bernoulli's equation is

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37. *In flow, the liquid particles may possess

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38. Mass density of liquid (p) is given by

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39. *If the velocity of fluid particles varies from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be

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

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

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42. The water immediately downstream of the conduit or weir is called

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

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44. A siphon is an

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45. When the fluid is at rest, the shear stress is

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46. If the Froude number in open channel flow is less than 1.0, the flow is called

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47. *Uniform flow is said to occur when

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

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49. The phenomenon of rising of a liquid surface in a tube of small diameter relative to the adjacent normal level of the liquid is known as

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50. 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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