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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. Falling drops of water become spheres due to

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

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

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

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

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6. Mach number is the ratio of inertia force to

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7. Gauge pressure is

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8. If the Froude number in open channel flow is more than 1.0, the flow is called

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9. In fluids, steady flow occurs when

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10. Hydraulic gradient line and total energy line are

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

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12. Open channel flow is

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13. Cavitations is collapsed by

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14. *A pitot tube is used to measure

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

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16. 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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17. The basic head loss in a long pipe is:

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18. For uniform flow in the channel

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19. *Hydraulic gradient is equal to

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20. *What affects the quantity of mass of a fluid?

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

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22. *Surface float is used to measure

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23. Poise is the unit of

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24. *1 m head is equivalent to

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

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26. If H is the height of the liquid above the sill, the effect of end contraction on each side, according to Francis' formula, is

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27. In an inclined pipe, the pressure difference at its two ends is due to

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28. Pick up the correct statement from the following

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

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30. In an open tube, the free surface of mercury remains

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

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32. 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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33. *The orifice used for low discharge is

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34. *Cavitations is caused by

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35. The maximum velocity in an open channel occurs

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36. 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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37. *The width of a weir with end contraction is

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38. *The hydraulic ram is a pump that works on

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

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40. *The rate of flow through a venturimeter varies as

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41. One horsepower is equal to

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

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

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45. Super-critical flow occurs in

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

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47. *Hydraulic gradient line (H.G.L.) represents the sum of

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

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49. *The float method is used to measure

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

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