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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. Mouthpieces are used to measure

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

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3. *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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4. Hydrostatic pressure on a dam depends upon its

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

6 / 50

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

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7. *Manometers are used to measure

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8. 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

9 / 50

9. The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called

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10. *Water cushion is used to

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

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12. *In flow, the liquid particles may possess

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

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14. The Manning's formula for flow in an open channel is given by

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

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16. The minimum head loss will occur in

17 / 50

17. *Viscosity of a liquid

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

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19. The viscosity of gases varies with temperature

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20. If the fluid particles move in straight lines and all the lines are parallel to the surface, the flow is called

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21. The error 1% in measuring H will produce a

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22. In an open channel flow

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23. *To measure atmospheric pressure, we use

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24. *Bernoulli's equation assumes that

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25. Practical fluids possess

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

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27. *Hydraulic gradient line (H.G.L.) represents the sum of

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28. The depth of flow after the hydraulic jump is

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29. *Piezometers are used to measure

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30. A siphon is used

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31. For any channel section, the specific energy increase with

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

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

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

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35. Chazy's formula is used to determine

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36. Velocity of flow may be determined using:

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37. *Hydraulic gradient line (except siphon)

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38. *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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39. *The width of a weir with end contraction is

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40. *The pressure in pipe flow is normally

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41. *If the velocity, pressure, density, etc., do not change at a point with respect to time, the flow is called

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42. *Cavitations is caused by

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43. *Hydraulic gradient is equal to

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44. Poise is the unit of

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45. The continuity equation

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

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

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

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

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

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