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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. Reynolds number is the ratio of initial force and

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2. *Stoke is the unit of

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3. Total head of a particle in motion is the sum of

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4. *Manometers are used to measure

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

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7. A siphon is an

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8. The water immediately downstream of the conduit or weir is called

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

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

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11. 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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12. In a venturimeter, the divergent cone is kept

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

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14. The continuity equation

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15. *To measure atmospheric pressure, we use

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16. *Orifice-meter is used to measure:

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17. A siphon is used

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18. *Capillary rise is proportional to

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19. The viscosity of gases varies with temperature

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20. *Piezometers are used to measure

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21. *1 m head is equivalent to

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22. 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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23. Flow in pipes is turbulent if the Reynolds number is

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24. *In flow, the liquid particles may possess

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

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

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

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28. *If a pitot tube is placed with its nose facing downstream, the liquid

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29. 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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30. In a flowing liquid, a particle may possess

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31. When the fluid is at rest, the shear stress is

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32. *Pressure head is given by

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33. The basic head loss in a long pipe is:

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34. 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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35. Which of the following has the highest coefficient of discharge:

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

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

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38. 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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39. *Back water curve is caused if there is a

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40. Cavitations in flowing fluid occurs when

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

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

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43. Open channel flow is

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44. The pressure less than atmospheric pressure is known as

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

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46. Super-critical flow occurs in

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47. Euler's number is the ratio of

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

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49. *The flow in which the path of individual particles of liquid cross each other is called

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50. Hydrostatic pressure on a dam depends upon its

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