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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 profile of rising water on the upstream side of the dam is called

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2. Chazy's formula is used to determine

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3. *Hydraulic gradient is equal to

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

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5. *Viscosity of a liquid

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

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

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8. Liquids or fluids

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

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

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

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12. 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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13. The basic head loss in a long pipe is:

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14. If S is the height of the crest above the base of the channel and H is the head of water over the weir, whose length is L and discharge is Q m^3/sec, the velocity of approach Va is

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15. *The types of instrument used to measure low pressure with accuracy is

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16. The most efficient channel section is

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17. A fluid particle may possess the displacement of

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18. 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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19. 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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20. *1 m head is equivalent to

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

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

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23. *A pitot tube is used to measure

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24. 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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25. *Differential manometers are used to measure

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26. 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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27. *If the velocity in a fluid flow does not change with respect to the length of the direction of flow, it is called

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28. The flow in which each liquid particle has a definite path is called

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29. The continuity equation

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30. The depth of flow after the hydraulic jump is

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

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32. *The float method is used to measure

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

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

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

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37. 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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38. Which of the following is the example of laminar flow?

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39. Liquids

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

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41. *The phenomenon occurring in an open channel when a rapidly flowing stream abruptly changes to a slowly flowing stream, causing a distinct rise of the liquid surface, is

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42. Practical fluids possess

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

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

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45. *Rotameter is used for measuring

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46. *The actual velocity through an orifice is........... than the theoretical velocity.

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47. A ideal fluid

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

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49. The upward water pressure at the base of the structure is called

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50. *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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