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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. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as:

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2. If the Froude number in open channel flow is less than 1.0, the flow is called

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3. *Manometers are used to measure

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4. "Maximum efficiency of power transmission through a pipe is

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5. Reynolds number is the ratio of initial force and

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

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

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8. *The hydraulic ram is a device

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9. The continuity equation

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10. The maximum velocity in an open channel occurs

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11. A siphon is an

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

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13. The most efficient channel section is

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

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

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16. *The orifice used for low discharge is

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17. 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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18. 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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19. The ratio of the mean velocity to the surface velocity in open channels is equal to

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20. The discharge through a V-notch weir is directly proportional to:

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

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

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

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

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

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26. *Surface tension is the force

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

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28. 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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29. *The notch angle for the maximum discharge over a triangular notch is

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

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31. A siphon is used

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32. The line joining the points to which the liquid rises in vertical piezometer tubes fitted at different cross-sections of a conduit is known as

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33. *Rotameter is used for measuring

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34. If the total head of the nozzle of a pipe is 37.5m and the discharge is 1 cubic meter per second, then the power generated is

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

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36. *A stepped notch is a combination of

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37. The difference in pressure head measured by a mercury-oil differential manometer for a 20 cm difference of mercury level will be (specific gravity of oil-0.8)

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38. Specific weight of liquid

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39. The minimum head loss will occur in

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40. The hydrostatic force exerted by 2 m deep water on the gate downstream is equal to

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41. *Losses are more in

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

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43. In a flowing liquid, a particle may possess

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44. Gauge pressure is

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45. *The main assumption of Bernoulli's equation is

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

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

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48. *Uniform flow is said to occur when

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49. 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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50. *Molecules of fluids get attracted due to

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