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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. *Orifice-meter is used to measure:

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2. If the total head of the nozzle of a pipe is 37.5m and the discharge is 1 cubic meter per second, then the power generated is

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3. *The actual velocity through an orifice is........... than the theoretical velocity.

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

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5. To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m^3/sec, the length of the weir will be (Cd = 0.62)

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6. For a long pipe, the head loss

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7. From a nozzle exposed to the atmosphere, the liquid jet traverses

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

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

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

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11. *The pressure in pipe flow is normally

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12. The term P/pg is known as

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13. *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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14. The viscosity of liquids varies with temperature

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

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

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17. *Pressure within a soap bubble is

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18. Which of the following has the highest coefficient of discharge:

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

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

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21. Mouthpieces are used to measure

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

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

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24. Practical fluids possess

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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. The error 1% in measuring H will produce a

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

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28. A siphon is used

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29. Hooke's law for solids is analogous to

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30. 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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31. *Rotameter is used for measuring

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32. *Which of the following statements is valid?

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33. *To measure atmospheric pressure, we use

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

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

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37. *In flow, the liquid particles may possess

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38. At the vena contracta, the jet has the minimum cross-sectional area, and so the velocity of the liquid at this section will be

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39. Falling drops of water become spheres due to

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

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41. The term z is known as

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

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43. *Variation in volume of liquid with variation in pressure is called

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

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45. An intensifier is used to increase

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

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47. *The hydraulic radius is equal to

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48. In a venturimeter, the divergent cone is kept

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49. *The atmospheric pressure varies with

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50. *Surface tension is the force

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