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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. "Maximum efficiency of power transmission through a pipe is

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

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3. 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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4. Hydrostatic pressure on a dam depends upon its

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

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6. The depth of flow after the hydraulic jump is

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

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8. *1 m head is equivalent to

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9. The viscosity of liquids varies with temperature

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10. For the flow of liquid from an open-ended tube (nozzle) leading to the formation of a spray of liquid drops, the number generally is

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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:

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12. Euler's number is the ratio of

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13. *The magnitude of water hammer depends upon

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14. *Head loss increases with

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15. The attraction among different particles of the same material is

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16. The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called

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

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

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19. *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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20. Which of the following is the example of laminar flow?

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21. Cavitations is collapsed by

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22. In a flowing liquid, a particle may possess

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23. In a venturimeter, the divergent cone is kept

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24. Which of the following quantities are dimensionless?

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25. 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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26. Specific weight of sea water is more than that of pure water because of

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

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28. A triangular notch is preferred to a rectangular notch because

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

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30. *Bernoulli's equation assumes that

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31. "Manning's formula is used for

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32. *A flow is said to be laminar when

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33. *Which of the following statements is valid?

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34. Chazy's formula is used to determine

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35. 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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36. *The orifice used for low discharge is

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

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38. *Cavitations is caused by

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39. When the pipes are connected in parallel, the total loss of head

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40. Open channel flow is

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41. 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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42. *Surface tension is the force

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43. Water hammer is a phenomenon that occurs

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44. The pressure less than atmospheric pressure is known as

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45. An intensifier is used to increase

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46. *The hydraulic radius is equal to

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

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48. *Cipolleti weir is a

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

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

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