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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 term P/pg is known as

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2. Weber number is the ratio of inertia force to

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

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

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

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

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8. 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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9. *Capillarity of water is

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10. Poise is the unit of

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

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12. If the velocity in a fluid flow changes with respect to the length of the direction of the flow, it is called

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13. *Viscosity of a liquid

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14. A siphon is used

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15. *The main assumption of Bernoulli's equation is

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

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17. Reynolds number is the ratio of initial force and

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18. A steady uniform flow is through a

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

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20. Mach number is the ratio of inertia force to

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

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22. *Stoke is the unit of

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

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

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25. Liquids or fluids

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26. 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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27. Hooke's law for solids is analogous to

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28. In a venturimeter, the divergent cone is kept

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29. In fluids, steady flow occurs when

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30. 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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31. *Chazy's formula is given by

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32. *Orifice-meter is used to measure:

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33. The hydrostatic force exerted by 2 m deep water on the gate downstream is equal to

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34. Velocity of flow may be determined using:

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

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36. *Manometers are used to measure

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37. *If a pitot tube is placed with its nose facing sideways, the liquid

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38. The depth of flow after the hydraulic jump is

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39. Which of the following is the example of laminar flow?

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

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

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43. *Surface float is used to measure

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44. A ideal fluid

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

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46. The inlet length of a venturimeter

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47. The flow in which each liquid particle has a definite path is called

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

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49. For the flow of liquid from an open-ended tube (nozzle) leading to the formation of a spray of liquid drops, the number generally is

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

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