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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. *A flow is said to be laminar when

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

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

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4. Chazy's formula is used to determine

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5. *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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6. The thickness of a sharp-crested weir is kept less than

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

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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. *An ideal flow of a liquid obeys

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

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11. *If a pitot tube is placed with its nose facing downstream, the liquid

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

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13. *An orifice is called a large orifice if the water head is

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14. The viscosity of gases varies with temperature

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15. *Surface tension is the force

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

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

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

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19. A rise or fall of liquid in a glass tube of a very small diameter when dipped is

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20. *Which of the following statements is valid?

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21. In an inclined position, a venturimeter records

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22. In an open channel flow

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23. As per our convenience which one is correct with respect to the dimensionless number?

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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 rectangular notch is

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25. *Surface float is used to measure

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26. 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

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27. Liquids

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28. *The hydraulic ram is a device

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

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30. "Maximum efficiency of power transmission through a pipe is

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

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32. *In flow, the liquid particles may possess

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

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

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

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36. *The orifice used for low discharge is

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37. Discharge over an ogee weir remains the same as that of

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38. *Pressure head is given by

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

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40. The profile of rising water on the upstream side of the dam is called

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41. *The upper surface of the notch over which water flows is known as

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

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

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44. Hydrostatic pressure on a dam depends upon its

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45. *The float method is used to measure

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

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

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48. *Capillary rise is proportional to

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49. The upward water pressure at the base of the structure is called

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50. The two depths at which the specific energy is the same are called

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