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

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2. Hydraulic gradient line and total energy line are

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3. Gauge pressure is

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

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

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6. *Pressure head is given by

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7. With a clinging nappe of a weir, the excess discharge is

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8. *The discharge passing through the crest having a length of 1.25m, a height of the flow of water 0.25m, and Cd = 0.035 is

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

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

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11. The basic head loss in a long pipe is:

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12. *Venturimeter is used to measure

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13. The minimum head loss will occur in

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

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15. *Which of the following statements is valid?

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16. *The atmospheric pressure varies with

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17. *Stoke is the unit of

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18. In a flowing liquid, a particle may possess

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19. 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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20. *The hydraulic radius is equal to

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

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

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23. *The imaginary line joining each head of water is called

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24. *To measure very low pressure, we use:

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25. *A stepped notch is a combination of

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26. *Viscosity of a liquid

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

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28. 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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29. Euler's number is the ratio of

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30. In an open channel flow

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

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32. The difference in pressure head measured by a mercury-oil differential manometer for a 20 cm difference of mercury level will be (specific gravity of oil-0.8)

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

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

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

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36. Specific weight of liquid

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

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38. Cavitations in flowing fluid occurs when

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39. *Differential manometers are used to measure

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

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

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42. *In flow, the liquid particles may possess

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

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44. 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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45. The viscosity of gases varies with temperature

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

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47. The depth of flow at which the specific energy is minimum is called

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48. The viscosity of liquids varies with temperature

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49. Mach number is the ratio of inertia force to

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50. *Surface tension is the force

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