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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 multiplying factor for converting one poise into MKS unit of dynamic viscosity is

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2. *Which of the following statements is valid?

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

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4. A substance which deforms continuously under the action of shear stress is called

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5. In the case of vortex flow, the level of water at the center is

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6. *The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid if

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7. A siphon is an

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8. The capillary rise or fall of the liquid is given by

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9. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a triangular notch is

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10. 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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11. *Piezometers are used to measure

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12. Euler's number is the ratio of

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

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14. Discharge over an ogee weir remains the same as that of

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15. *Surface float is used to measure

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16. 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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17. Mouthpieces are used to measure

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

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19. In a venturimeter, the divergent cone is kept

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20. Reynolds number is the ratio of initial force and

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21. *Capillarity of water is

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

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

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24. A ideal fluid

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25. *Manometers are used to measure

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26. "Manning's formula is used for

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27. *Cipolleti weir is a

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28. 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

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29. For the laminar flow through a circular pipe, the maximum velocity is

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

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31. If the total head of the nozzle of a pipe is 37.5m and the discharge is 1 cubic meter per second, then the power generated is

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32. 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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33. Water hammer is a phenomenon that occurs

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34. *Hydraulic gradient line (except siphon)

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35. The maximum velocity in an open channel occurs

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36. When the fluid is at rest, the shear stress is

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

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38. *An ideal flow of a liquid obeys

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

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

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

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42. *The pressure in pipe flow is normally

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

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

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45. *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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46. The error 1% in measuring H will produce a

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47. *Differential manometers are used to measure

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

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49. *A flow is said to be laminar when

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50. The term P/pg is known as

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