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

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3. A ideal fluid

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4. Weber number is the ratio of inertia force to

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

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

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

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

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9. The line joining the points to which the liquid rises in vertical piezometer tubes fitted at different cross-sections of a conduit is known as

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10. *An independent mass of a fluid does not possess

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

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12. Hooke's law for solids is analogous to

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13. 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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14. *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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15. If the Froude number in open channel flow is equal to 1.0, the flow is called

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16. An intensifier is used to increase

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17. *Bernoulli's equation assumes that

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18. *The types of instrument used to measure low pressure with accuracy is

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

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20. *The hydraulic ram is a device

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

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

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23. The pressure less than atmospheric pressure is known as

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

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25. The viscosity of gases varies with temperature

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

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

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28. In a venturimeter, the divergent cone is kept

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29. *A flow is said to be laminar when

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30. *1 m head is equivalent to

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31. *A stepped notch is a combination of

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32. 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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33. In an open tube, the free surface of mercury remains

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34. *The actual velocity through an orifice is........... than the theoretical velocity.

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

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36. *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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37. Total pressure on the top of a closed cylindrical vessel completely filled with liquid is directly proportional to

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

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

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

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41. *In flow, the liquid particles may possess

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42. Reynolds number is the ratio of initial force and

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

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44. Falling drops of water become spheres due to

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

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46. *An orifice is called a large orifice if the water head is

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47. Specific weight of liquid

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

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

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50. *The pressure in pipe flow is normally

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