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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. Which of the following quantities are dimensionless?

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

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

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4. In a flowing liquid, a particle may possess

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5. *Manometers are used to measure

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

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7. *The most economical section of a circular channel for the maximum velocity is when

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8. *The energy possessed by a fluid by virtue of its existing pressure is called

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9. Weber number is the ratio of inertia force to

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10. Euler's number is the ratio of

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

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12. Cavitations is collapsed by

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

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14. *The floating method is used for the measurement of

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15. Cavitations in flowing fluid occurs when

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16. *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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17. *The magnitude of water hammer depends upon

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18. *The upper surface of the weir over which water flows is known as

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19. If fluid or flow parameters at any given instant remain the same at every point in space, it is called:

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20. Mach number is the ratio of inertia force to

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21. *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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22. A vessel having a depth of 30 cm is filled with water up to a depth of 10 cm from the top level. Find the pressure exerted at a depth of 5 cm and 15 cm from the top of the vessel respectively

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23. *The continuity equation deals with the law of conservation of

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24. An intensifier is used to increase

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

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

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

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29. Mass density of liquid (p) is given by

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

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31. Water hammer is a phenomenon that occurs

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

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33. The depth of flow after the hydraulic jump is

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

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

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36. *Molecules of fluids get attracted due to

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

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

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39. Liquids

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

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41. In an inclined pipe, the pressure difference at its two ends is due to

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42. *Water cushion is used to

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43. *A pitot tube is used to measure

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

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

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46. *Surface tension is the force

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47. *If a pitot tube is placed with its nose facing sideways, the liquid

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48. 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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49. *Pressure head is given by

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50. A siphon is an

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