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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. In an inclined position, a venturimeter records

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2. If the pressure is applied to the surface of a liquid, the liquid transmits the pressure equally in all directions is given by

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

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

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

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6. The numerical value of vorticity is.....of the rotation

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

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8. *The hydraulic radius is equal to

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9. Liquids

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10. Falling drops of water become spheres due to

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

12 / 50

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

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13. *The floating method is used for the measurement of

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14. *Viscosity of a liquid

15 / 50

15. Euler's number is the ratio of

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

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17. *Surface float is used to measure

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18. *The difference between the total energy line and the hydraulic gradient line is

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19. The inlet length of a venturimeter

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

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21. For uniform flow in the channel

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22. If S is the height of the crest above the base of the channel and H is the head of water over the weir, whose length is L and discharge is Q m^3/sec, the velocity of approach Va is

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23. The imaginary line drawn such that the tangents at its all points indicate the direction of the velocity of the fluid particle at each point is called

24 / 50

24. A siphon is an

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25. Specific weight of liquid

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26. The hydrostatic force exerted by 2 m deep water on the gate downstream is equal to

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

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28. The minimum head loss will occur in

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

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

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31. *Which of the following statements is valid?

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32. If the Froude number in open channel flow is equal to 1.0, the flow is called

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

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

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35. *If the velocity of fluid particles varies from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be

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

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37. *Barometers are used to measure

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38. Find the capillary rise/fall in a glass tube when immersed in mercury with the following given data: surface tension, σ = 0.52 gmf/cm, angle of contact, θ = 130°, S.G. of mercury = 13.6, diameter of the pipe = 2.5 mm.

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39. An intensifier is used to increase

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

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

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42. The viscosity of gases varies with temperature

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43. If the velocity in a fluid flow changes with respect to the length of the direction of the flow, it is called

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44. *Losses are more in

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

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46. The maximum velocity in an open channel occurs

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47. *Capillary rise is proportional to

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48. *A flow is said to be laminar when

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

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50. *Cipolleti weir is a

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