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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. Chazy's formula is used to determine

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2. Specific energy of a flowing fluid per unit weight is equal to

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3. Pick up the correct statement from the following

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4. *Capillarity of water is

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

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6. Mouthpieces are used to measure

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

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8. Liquids

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

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10. *The orifice used for low discharge is

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11. Cavitations is collapsed by

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12. For a long pipe, the head loss

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13. 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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14. *Bernoulli's equation assumes that

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15. The minimum head loss will occur in

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16. Weber number is the ratio of inertia force to

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

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18. The upward water pressure at the base of the structure is called

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19. A siphon is an

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

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21. A fluid particle may possess the displacement of

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22. *The condition for the maximum velocity and discharge is given by (closed flow)

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

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

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

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26. In fluids, steady flow occurs when

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27. If the fluid particles move in a zig-zag way, the flow is called

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

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

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30. 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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31. 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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32. *Which of the following statements is valid?

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33. *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

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34. *Manometers are used to measure

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35. Cavitations in flowing fluid occurs when

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

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37. Discharge over an ogee weir remains the same as that of

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

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

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41. *Variation in volume of liquid with variation in pressure is called

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

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43. The viscosity of gases varies with temperature

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44. The Manning's formula for flow in an open channel is given by

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45. *An ideal flow of a liquid obeys

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46. Water belongs to

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47. *Cipolleti weir is a

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48. *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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49. The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called

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50. *A pitot tube is used to measure

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