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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 difference between the total energy line and the hydraulic gradient line is

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2. Hooke's law for solids is analogous to

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3. An intensifier is used to increase

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

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5. If the fluid particles move in straight lines and all the lines are parallel to the surface, the flow is called

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6. The head of water representing in the case of HGL line is known as

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

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8. *Losses are more in

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9. As per our convenience which one is correct with respect to the dimensionless number?

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

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

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12. *The difference between the total energy gradient line and the total energy line is

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13. Open channel flow is

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14. The total energy of a liquid in motion is equal to:

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15. *The continuity equation deals with the law of conservation of

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16. *The wetted perimeter of a channel is given by

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17. 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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18. The multiplying factor for converting one poise into MKS unit of dynamic viscosity is

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19. A steady uniform flow is through a

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20. For a long pipe, the head loss

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

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

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23. The viscosity of liquids varies with temperature

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24. *The atmospheric pressure varies with

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

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27. Find the capillary rise/fall in a glass tube when immersed in mercury with the following given data: surface tension, σ = 0.52 gmf/cm, angle of contact, θ = 130°, S.G. of mercury = 13.6, diameter of the pipe = 2.5 mm.

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28. If the density of a fluid changes from point to point in a flow region, it is called

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

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

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31. *Surface tension is the force

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32. Practical fluids possess

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33. *A stepped notch is a combination of

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34. *Rotameter is used for measuring

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

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

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37. The phenomenon of rising of a liquid surface in a tube of small diameter relative to the adjacent normal level of the liquid is known as

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

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39. *The float method is used to measure

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40. In the case of leveling by a level pipe, the level is indicated by

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41. *Head loss increases with

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42. *The energy possessed by a fluid by virtue of its existing pressure is called

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43. *An independent mass of a fluid does not possess

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44. *The discharge through a trapezoidal channel is maximum when

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45. Super-critical flow occurs in

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46. Euler's number is the ratio of

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47. *Viscosity of a liquid

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48. *The orifice used for low discharge is

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49. A siphon is used

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50. *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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