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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 magnitude of capillary rise is more in:

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2. Velocity of flow may be determined using:

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3. *Manometers are used to measure

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

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5. *The term v^2/2g is known as

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

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

8 / 50

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

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

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

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11. *Losses are more in

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

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

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

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

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

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18. Cavitations is collapsed by

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

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20. The continuity equation

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21. *Cipolleti weir is a

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22. Which of the following has the highest coefficient of discharge:

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23. *A flow is said to be laminar when

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

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

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26. *The hydraulic ram is a device

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27. The difference in pressure head measured by a mercury-oil differential manometer for a 20 cm difference of mercury level will be (specific gravity of oil-0.8)

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28. In an open channel flow

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29. Super-critical flow occurs in

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30. The capillary rise or fall of the liquid is given by

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31. 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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32. Hydraulic gradient line for an open flow channel is

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33. 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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34. *Water cushion is used to

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35. *A stepped notch is a combination of

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

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

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38. 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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39. *The hydraulic radius is equal to

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40. *The atmospheric pressure varies with

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41. *If the velocity, pressure, density, etc., change at a point with respect to time, the flow is called

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

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43. The most economical section of a circular channel for the maximum discharge is when

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

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45. *Back water curve is caused if there is a

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46. *Rotameter is used for measuring

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

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48. A siphon is used

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

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

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