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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. *Capillarity of water is

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2. The term P/pg is known as

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3. *Water cushion is used to

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4. *The wetted perimeter of a channel is given by

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5. Rotation is defined as the movement of a fluid element in such a way that both of its axes rotate in...

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6. Which of the following quantities are dimensionless?

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

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8. ........ is defined as the maximum increase in water level in the path of the flow of water

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

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10. *A flow is said to be laminar when

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

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12. Mouthpieces are used to measure

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

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14. *The atmospheric pressure varies with

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15. The viscosity of gases varies with temperature

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

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17. A fluid particle may possess the displacement of

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18. Chazy's formula is used to determine

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

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

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21. Poise is the unit of

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22. Cavitations is collapsed by

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

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

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25. Super-critical flow occurs in

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

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27. Pick up the correct statement from the following

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28. 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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29. In fluids, steady flow occurs when

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30. The two depths at which the specific energy is the same are called

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31. At the vena contracta, the jet has the minimum cross-sectional area, and so the velocity of the liquid at this section will be

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32. *Differential manometers are used to measure

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

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34. 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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35. *Viscosity of a liquid

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36. Hydraulic gradient line for an open flow channel is

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37. *Surface tension is the force

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38. A substance which deforms continuously under the action of shear stress is called

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39. In a flowing liquid, a particle may possess

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40. 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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41. *The discharge through a trapezoidal channel is maximum when

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42. A siphon is used

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

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44. *If the velocity, pressure, density, etc., change at a point with respect to time, the flow is called

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45. Euler's number is the ratio of

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46. Total head of a particle in motion is the sum of

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

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48. In an open tube, the free surface of mercury remains

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49. The depth of flow after the hydraulic jump is

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50. *The width of a weir with end contraction is

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