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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. A siphon is used

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2. The depth of flow at which the specific energy is minimum is called

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

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

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

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6. Reynolds number is the ratio of initial force and

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7. As per our convenience which one is correct with respect to the dimensionless number?

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

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9. The maximum velocity in an open channel occurs

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10. The thickness of a sharp-crested weir is kept less than

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

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

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

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14. *Bernoulli's equation assumes that

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15. The inlet length of a venturimeter

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16. *Head loss increases with

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17. *A flow is said to be laminar when

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

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19. *Capillarity of water is

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

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

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22. Velocity of flow may be determined using:

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23. In an inclined position, a venturimeter records

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24. For a long pipe, the head loss

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25. The most economical section of a circular channel for the maximum discharge is when

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26. A rise or fall of liquid in a glass tube of a very small diameter when dipped is

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

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

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29. In the case of leveling by a level pipe, the level is indicated by

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

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31. Poise is the unit of

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32. *The hydraulic radius is equal to

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33. A ideal fluid

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

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35. *Barometers are used to measure

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36. The viscosity of liquids varies with temperature

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37. An intensifier is used to increase

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38. In fluids, steady flow occurs when

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39. Cavitations is collapsed by

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40. Water belongs to

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41. *Pressure head is given by

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42. The error 1% in measuring H will produce a

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

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44. *The discharge through a trapezoidal channel is maximum when

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45. The difference in pressure head measured by a mercury-oil differential manometer for a 20 cm difference of mercury level will be (specific gravity of oil-0.8)

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

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47. Hydraulic gradient line for an open flow channel is

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

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

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50. 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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