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

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

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4. Reynolds number is the ratio of initial force and

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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. The pressure less than atmospheric pressure is known as

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7. 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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8. *What affects the quantity of mass of a fluid?

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9. Hooke's law for solids is analogous to

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10. To avoid an interruption in the flow of a siphon, the air vessel is provided

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11. If the specific gravity of oil is 0.7, then find the density of oil

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12. *The float method is used to measure

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

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14. *Bernoulli's equation is applied to

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

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

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17. 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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18. 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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19. *The magnitude of capillary rise is more in:

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20. *Uniform flow is said to occur when

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21. Liquids

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22. Specific weight of liquid

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

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24. Cavitations in flowing fluid occurs when

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

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26. *Surface float is used to measure

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27. Which of the following quantities are dimensionless?

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28. The maximum velocity in an open channel occurs

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29. *Venturimeter is used to measure

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30. The section of the Jet leaving an orifice, having the minimum cross-section area, is called

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31. 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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32. Super-critical flow occurs in

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33. *Differential manometers are used to measure

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34. An intensifier is used to increase

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35. *Stoke is the unit of

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36. If fluid or flow parameters at any given instant remain the same at every point in space, it is called:

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

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38. For a circular channel, the wetted perimeter is given by (where θ=half the angle subtended by the water at the center and R= radius of circular channel)

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

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

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41. Head loss due to friction in a pipe is given by the Darcy-Weisbach equation

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42. For a long pipe, the head loss

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43. *A flow is said to be laminar when

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

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45. *Capillary rise is proportional to

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

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

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

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49. 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

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50. *A pitot tube is used to measure

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