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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. For a long pipe, the head loss

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

3 / 50

3. The profile of rising water on the upstream side of the dam is called

4 / 50

4. *Bernoulli's equation assumes that

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5. *Orifice-meter is used to measure:

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

7 / 50

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

8 / 50

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. Practical fluids possess

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10. In an open channel flow

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11. The pressure difference between inside and outside of a droplet of water is given by (Where σ is surface tension and d is the diameter of the droplet.)

12 / 50

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

13 / 50

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

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14. *Cipolletti weir is a trapezoidal weir having a side slope of

15 / 50

15. *The orifice used for low discharge is

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16. The most efficient channel section is

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17. *The discharge through a trapezoidal channel is maximum when

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18. *Piezometers are used to measure

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19. The section of the Jet leaving an orifice, having the minimum cross-section area, is called

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20. *The difference between the total energy gradient line and the total energy line is

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

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22. Cavitations in flowing fluid occurs when

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23. *Surface float is used to measure

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24. *The specific weight of water 1000 kg/m^3

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

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26. *Surface tension is the force

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27. Pick up the correct statement from the following

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28. *The floating method is used for the measurement of

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

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30. *Cipolleti weir is a

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31. In an inclined position, a venturimeter records

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32. *The flow in which the path of individual particles of liquid cross each other is called

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

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

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

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36. *Cavitations is caused by

37 / 50

37. *Venturimeter is used to measure

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

39 / 50

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

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40. In fluids, steady flow occurs when

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

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

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43. A siphon is used

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

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45. *1 m head is equivalent to

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46. In the case of a broad-crested weir, the depth of water h at the end of the still is given by

47 / 50

47. 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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48. The depth of flow after the hydraulic jump is

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

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