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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. *The main assumption of Bernoulli's equation is

2 / 50

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

3 / 50

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

4 / 50

4. *Hydraulic gradient line (except siphon)

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

6 / 50

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

7 / 50

7. *Bernoulli's equation assumes that

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8. An oil of specific gravity 0.7 and pressure 0.14 kgf/cm^2 will have the height of oil as

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9. *The hydraulic ram is a device

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10. A ideal fluid

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

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

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14. *The atmospheric pressure varies with

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

16 / 50

16. One horsepower is equal to

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17. *Hydraulic gradient is equal to

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

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19. 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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20. The basic head loss in a long pipe is:

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21. 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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22. Cavitations is collapsed by

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23. Flow in pipes is turbulent if the Reynolds number is

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24. *If the volume of liquid weighing 3000 kg is 4 cubic meters, then the specific gravity is

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

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

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27. *To measure very low pressure, we use:

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

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

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30. Pick up the correct statement from the following

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31. The capillary rise or fall of the liquid is given by

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32. *Manometers are used to measure

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33. *Orifice-meter is used to measure:

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34. The viscosity of liquids varies with temperature

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

36 / 50

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

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37. *To measure atmospheric pressure, we use

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

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39. Practical fluids possess

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

41 / 50

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

42 / 50

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

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43. The ratio of the mean velocity to the surface velocity in open channels is equal to

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

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45. For a long pipe, the head loss

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46. Poise is the unit of

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47. Hydrostatic pressure on a dam depends upon its

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48. *The magnitude of capillary rise is more in:

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

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

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