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

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2. Open channel flow is

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3. *The magnitude of water hammer depends upon

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4. *A flow is said to be laminar when

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

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

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7. 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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8. *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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9. Hydraulic gradient line for an open flow channel is

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

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11. A steady uniform flow is through a

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12. *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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13. *A stepped notch is a combination of

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14. For a long pipe, the head loss

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15. In an open channel flow

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16. Poise is the unit of

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17. *What affects the quantity of mass of a fluid?

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

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19. The term z is known as

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

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21. Cavitations in flowing fluid occurs when

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

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

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24. Water belongs to

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25. When the pipes are connected in parallel, the total loss of head

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26. *An ideal flow of a liquid obeys

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

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29. The pressure less than atmospheric pressure is known as

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30. *Pressure head is given by

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

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32. 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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33. If the Froude number in open channel flow is equal to 1.0, the flow is called

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34. The minimum head loss will occur in

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

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

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37. 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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38. *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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39. At the vena contracta, the jet has the minimum cross-sectional area, and so the velocity of the liquid at this section will be

40 / 50

40. Mach number is the ratio of inertia force to

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41. "Manning's formula is used for

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42. *The pressure in pipe flow is normally

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43. The ratio of the mean velocity to the surface velocity in open channels is equal to

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44. *Capillarity of water is

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45. 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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46. Reynolds number is the ratio of initial force and

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47. *Bernoulli's equation is applied to

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48. *The rate of flow through a venturimeter varies as

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49. To avoid an interruption in the flow of a siphon, the air vessel is provided

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

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