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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. *Orifice-meter is used to measure:

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

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

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4. If H is the height of the liquid above the sill, the effect of end contraction on each side, according to Francis' formula, is

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

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6. Euler's number is the ratio of

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7. Falling drops of water become spheres due to

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

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

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

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

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13. *Surface tension is the force

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14. An intensifier is used to increase

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15. Velocity of flow may be determined using:

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

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17. Liquids or fluids

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

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19. "Manning's formula is used for

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

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

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

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

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24. Critical depth (he) is given by (where q= rate of flow per unit width of channel)

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25. *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

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26. *Cipolleti weir is a

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27. *Hydraulic gradient is equal to

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28. *The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid if

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29. For the same specific force, the two depths at which the same discharge occurs are called

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

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31. A siphon is an

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32. *Which of the following statements is valid?

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

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34. Cavitations in flowing fluid occurs when

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35. Water hammer is a phenomenon that occurs

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36. 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.)

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37. *Capillarity of water is

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38. *The equation of continuity of fluids is applicable only if

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

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40. Mouthpieces are used to measure

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

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42. The viscosity of liquids varies with temperature

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43. For uniform flow in the channel

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44. *Piezometers are used to measure

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

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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. *A pitot tube is used to measure

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48. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a rectangular notch is

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49. *An independent mass of a fluid does not possess

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

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