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

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

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

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

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5. 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

6 / 50

6. To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m^3/sec, the length of the weir will be (Cd = 0.62)

7 / 50

7. In an open channels the analysis of a sugar is done by using

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

9 / 50

9. *In flow, the liquid particles may possess

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10. *Stoke is the unit of

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

12 / 50

12. *Head loss increases with

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13. The term z is known as

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14. Reynolds number is the ratio of initial force and

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15. Practical fluids possess

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16. *Cavitations is caused by

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17. An intensifier is used to increase

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

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

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20. In the case of vortex flow, the level of water at the center is

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21. *The hydraulic ram is a device

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22. A ideal fluid

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

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24. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a triangular notch is

25 / 50

25. *Bernoulli's equation is applied to

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

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

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28. *Manometers are used to measure

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29. 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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30. *The equation of continuity of fluids is applicable only if

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

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

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33. *If the volume of a liquid weighing 2400 kg is 3 cubic meters, then 0.8 is its:

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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. *Cipolleti weir is a

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36. *Total energy line (T.E.L) represents the sum of

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37. *The discharge passing through the crest having a length of 1.25m, a height of the flow of water 0.25m, and Cd = 0.035 is

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38. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a rectangular notch is

39 / 50

39. A steady uniform flow is through a

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40. 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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41. *The specific weight of water 1000 kg/m^3

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

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43. Which of the following has the highest coefficient of discharge:

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44. *What affects the quantity of mass of a fluid?

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45. For any channel section, the specific energy increase with

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46. If the fluid particles move in a zig-zag way, the flow is called

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47. ........ is defined as the maximum increase in water level in the path of the flow of water

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48. A substance which deforms continuously under the action of shear stress is called

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

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50. *Water cushion is used to

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