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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. An intensifier is used to increase

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2. As per our convenience which one is correct with respect to the dimensionless number?

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

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4. *Bernoulli's theorem deals with the law of conservation of

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5. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as:

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6. A ideal fluid

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7. Hydraulic gradient line and total energy line are

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

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9. 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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10. From a nozzle exposed to the atmosphere, the liquid jet traverses

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

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

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

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14. Water belongs to

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

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

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17. The attraction among different particles of the same material is

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18. Velocity of flow may be determined using:

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19. Which of the following quantities are dimensionless?

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20. *Barometers are used to measure

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

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

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

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

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25. "Manning's formula is used for

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26. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a triangular notch is

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27. 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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28. If the Froude number in open channel flow is more than 1.0, the flow is called

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29. Weber number is the ratio of inertia force to

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

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31. *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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32. *A flow is said to be laminar when

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

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35. Crest of a weir is lower than d/s water level

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36. Reynolds number is the ratio of initial force and

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

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38. In an open channel flow

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39. *Cavitations is caused by

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40. 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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41. 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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42. Cavitations is collapsed by

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43. *The orifice used for low discharge is

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44. *If the volume of liquid weighing 3000 kg is 4 cubic meters, then the specific gravity is

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

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

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47. Mouthpieces are used to measure

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48. 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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49. Liquids or fluids

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

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