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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. Velocity of flow may be determined using:

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

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3. 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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4. The upward water pressure at the base of the structure is called

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5. Specific energy of a flowing fluid per unit weight is equal to

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6. In an open channel flow

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

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

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

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

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11. The flow in which each liquid particle has a definite path is called

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

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13. In the case of a broad-crested weir, the depth of water h at the end of the still is given by

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14. *Manometers are used to measure

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15. 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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16. The pressure difference between inside and outside of a droplet of water is given by (Where σ is surface tension and d is the diameter of the droplet.)

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

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

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19. *The hydraulic ram is a device

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20. *Chazy's formula is given by

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21. Reynolds number is the ratio of initial force and

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

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

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25. Weber number is the ratio of inertia force to

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

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

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28. A siphon is used

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29. At the vena contracta, the jet has the minimum cross-sectional area, and so the velocity of the liquid at this section will be

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30. The term P/pg is known as

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31. 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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32. Hydraulic gradient line and total energy line are

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

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

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36. Hooke's law for solids is analogous to

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37. *The pressure in pipe flow is normally

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38. Practical fluids possess

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

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40. Which of the following quantities are dimensionless?

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

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

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

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

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45. *The condition for the maximum velocity and discharge is given by (closed flow)

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46. The multiplying factor for converting one poise into MKS unit of dynamic viscosity is

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

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

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49. If the Froude number in open channel flow is less than 1.0, the flow is called

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50. *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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