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

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

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3. *The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid if

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4. Mass density of liquid (p) is given by

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5. Poise is the unit of

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6. *Bernoulli's equation is applied to

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7. *The imaginary line joining each head of water is called

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8. The inlet length of a venturimeter

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

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10. *If the velocity in a fluid flow does not change with respect to the length of the direction of flow, it is called

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11. Cavitations in flowing fluid occurs when

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12. In an open channel flow

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

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

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15. *A pitot tube is used to measure

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

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17. *Chazy's formula is given by

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

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

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20. *Which of the following statements is valid?

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

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22. 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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23. Which of the following is the example of laminar flow?

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24. Velocity of flow may be determined using:

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25. *Losses are more in

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

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27. *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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28. *Water cushion is used to

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29. For a long pipe, the head loss

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30. Hooke's law for solids is analogous to

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

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

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33. The viscosity of liquids varies with temperature

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34. Weber number is the ratio of inertia force to

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35. *The pressure in pipe flow is normally

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

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

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

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

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40. *Venturimeter is used to measure

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41. *An ideal flow of a liquid obeys

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42. Which of the following quantities are dimensionless?

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43. Cavitations is collapsed by

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44. *Cipolleti weir is a

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

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46. The pressure difference between inside and outside of a droplet of water is given by (Where σ is surface tension and d is the diameter of the droplet.)

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47. The water immediately downstream of the conduit or weir is called

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48. *Hydraulic gradient line (except siphon)

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49. *The hydraulic ram is a device

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50. Open channel flow is

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