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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. *Surface float is used to measure

2 / 50

2. The term z is known as

3 / 50

3. *Viscosity of a liquid

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4. Poise is the unit of

5 / 50

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

6 / 50

6. *An ideal flow of a liquid obeys

7 / 50

7. *If a pitot tube is placed with its nose facing sideways, the liquid

8 / 50

8. *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

9 / 50

9. *1 m head is equivalent to

10 / 50

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

11 / 50

11. Specific weight of liquid

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12. *Differential manometers are used to measure

13 / 50

13. From a nozzle exposed to the atmosphere, the liquid jet traverses

14 / 50

14. If the specific gravity of oil is 0.7, then find the density of oil

15 / 50

15. *Capillary rise is proportional to

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16. *Piezometers are used to measure

17 / 50

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

18 / 50

18. *The orifice used for low discharge is

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

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20. *Pascal's law states that pressure at a point is equal in all directions

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21. Open channel flow is

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22. In fluids, steady flow occurs when

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

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

25 / 50

25. *The atmospheric pressure varies with

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26. *The magnitude of capillary rise is more in:

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

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28. *The hydraulic radius is equal to

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

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30. Liquids

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31. The pressure less than atmospheric pressure is known as

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

33 / 50

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

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34. 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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35. *In flow, the liquid particles may possess

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36. *The rate of flow through a V-notch varies as:

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

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

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

40 / 50

40. *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

41 / 50

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

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

43 / 50

43. For the laminar flow through a circular pipe, the maximum velocity is

44 / 50

44. *The pressure in pipe flow is normally

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

46 / 50

46. 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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47. *The hydraulic ram is a device

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48. The inlet length of a venturimeter

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49. In an open channel flow

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50. To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m^3/sec, the length of the weir will be (Cd = 0.62)

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