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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. *The discharge through a trapezoidal channel is maximum when

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

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3. In an open channel flow

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

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

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

7 / 50

7. Gauge pressure is

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8. Mach number is the ratio of inertia force to

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

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10. Hooke's law for solids is analogous to

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11. When the pipes are connected in parallel, the total loss of head

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12. In a flowing liquid, a particle may possess

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

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14. For the flow of liquid from an open-ended tube (nozzle) leading to the formation of a spray of liquid drops, the number generally is

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

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16. Head loss due to friction in a pipe is given by the Darcy-Weisbach equation

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17. 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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18. *Piezometers are used to measure

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19. Poise is the unit of

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20. *Manometers are used to measure

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21. *Uniform flow is said to occur when

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

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23. An intensifier is used to increase

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24. Find the capillary rise/fall in a glass tube when immersed in mercury with the following given data: surface tension, σ = 0.52 gmf/cm, angle of contact, θ = 130°, S.G. of mercury = 13.6, diameter of the pipe = 2.5 mm.

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

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26. *Hydraulic gradient is equal to

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

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

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

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

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

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

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33. For a long pipe, the head loss

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34. The continuity equation

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35. If the Froude number in open channel flow is more than 1.0, the flow is called

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36. 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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37. 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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38. *If the velocity, pressure, density, etc., change at a point with respect to time, the flow is called

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

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40. *The discharge through a rectangular channel is maximum when

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41. Open channel flow is

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

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

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

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47. A siphon is an

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48. Cavitations in flowing fluid occurs when

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49. 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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50. A steady uniform flow is through a

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