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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 profile of rising water on the upstream side of the dam is called

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2. Super-critical flow occurs in

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3. The inlet length of a venturimeter

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4. Cavitations in flowing fluid occurs when

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5. Which of the following quantities are dimensionless?

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6. The maximum velocity in an open channel occurs

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7. In an inclined position, a venturimeter records

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8. Hooke's law for solids is analogous to

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9. Hydraulic gradient line for an open flow channel is

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

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11. The head of water representing in the case of HGL line is known as

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12. Poise is the unit of

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

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14. To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m^3/sec, the length of the weir will be (Cd = 0.62)

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15. *Orifice-meter is used to measure:

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16. 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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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. Hydrostatic pressure on a dam depends upon its

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19. *The pressure in pipe flow is normally

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

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

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

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23. An intensifier is used to increase

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

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

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

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27. 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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28. *The orifice used for low discharge is

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

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

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31. Flow in pipes is turbulent if the Reynolds number is

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32. *Water cushion is used to

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33. *Piezometers are used to measure

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34. If the volume of a liquid weighing 3000 kg is 4 cubic meters, then 0.75 is its

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35. *In flow, the liquid particles may possess

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

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38. *Capillary rise is proportional to

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39. Weber number is the ratio of inertia force to

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40. 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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41. A ideal fluid

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42. *If the velocity in a fluid flow does not change with respect to the length of the direction of flow, it is called

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

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

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45. The viscosity of gases varies with temperature

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46. *What affects the quantity of mass of a fluid?

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47. In a flowing liquid, a particle may possess

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48. A fluid particle may possess the displacement of

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49. The pressure less than atmospheric pressure is known as

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

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