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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 atmospheric pressure varies with

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2. *The orifice used for low discharge is

3 / 50

3. If H is the height of the liquid above the sill, the effect of end contraction on each side, according to Francis' formula, is

4 / 50

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

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

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

8 / 50

8. One horsepower is equal to

9 / 50

9. 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

10 / 50

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

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

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

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13. *Losses are more in

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14. Hooke's law for solids is analogous to

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

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16. *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

17 / 50

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

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18. Reynolds number is the ratio of initial force and

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

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20. Practical fluids possess

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21. *Cipolleti weir is a

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

23 / 50

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

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

25 / 50

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

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

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27. *Head loss increases with

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28. 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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29. Euler's number is the ratio of

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30. A siphon is used

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

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32. In a venturimeter, the divergent cone is kept

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33. *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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34. If the volume of a liquid weighing 3000 kg is 4 cubic meters, then 0.75 is its

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

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36. The difference in pressure head measured by a mercury-oil differential manometer for a 20 cm difference of mercury level will be (specific gravity of oil-0.8)

37 / 50

37. The Manning's formula for flow in an open channel is given by

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38. If the fluid particles move in straight lines and all the lines are parallel to the surface, the flow is called

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

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40. *Pressure within a soap bubble is

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41. *If a pitot tube is placed with its nose facing sideways, the liquid

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

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43. Weber number is the ratio of inertia force to

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44. Poise is the unit of

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45. Specific weight of liquid

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46. In an open channel flow

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

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

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49. Water hammer is a phenomenon that occurs

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50. *The pressure in pipe flow is normally

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