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

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

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4. *Differential manometers are used to measure

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5. The most economical section of a circular channel for the maximum discharge is when

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

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7. If S is the height of the crest above the base of the channel and H is the head of water over the weir, whose length is L and discharge is Q m^3/sec, the velocity of approach Va is

8 / 50

8. *Bernoulli's theorem deals with the law of conservation of

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

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10. *Pascal's law states that pressure at a point is equal in all directions

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11. Poise is the unit of

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

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13. The most efficient channel section is

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14. The imaginary line drawn such that the tangents at its all points indicate the direction of the velocity of the fluid particle at each point is called

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15. The numerical value of vorticity is.....of the rotation

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16. *Hydraulic gradient is equal to

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

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18. In fluids, steady flow occurs when

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

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

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21. When the pipes are connected in series, the total rate of flow

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22. Crest of a weir is lower than d/s water level

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

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

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25. A ideal fluid

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26. *If the velocity, pressure, density, etc., do not change at a point with respect to time, the flow is called

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27. Super-critical flow occurs in

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28. Practical fluids possess

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29. *Molecules of fluids get attracted due to

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30. In the case of a broad-crested weir, the depth of water h at the end of the still is given by

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31. In a venturimeter, the divergent cone is kept

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

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

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

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

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

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

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38. *The flow in which the path of individual particles of liquid cross each other is called

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39. A siphon is used

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40. Hydrostatic pressure on a dam depends upon its

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

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

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

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45. The viscosity of gases varies with temperature

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46. Liquids or fluids

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

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

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49. Mouthpieces are used to measure

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

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