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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. *Which of the following statements is valid?

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2. Hooke's law for solids is analogous to

3 / 50

3. *The notch angle for the maximum discharge over a triangular notch is

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

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5. *The magnitude of water hammer depends upon

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6. "Maximum efficiency of power transmission through a pipe is

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7. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as:

8 / 50

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

9 / 50

9. *Capillary rise is proportional to

10 / 50

10. *Surface float is used to measure

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11. In a flowing liquid, a particle may possess

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

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13. *Bernoulli's equation assumes that

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14. The maximum velocity in an open channel occurs

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15. In an open channel flow

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16. *Uniform flow is said to occur when

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17. *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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18. For a long pipe, the head loss

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19. *If the velocity, pressure, density, etc., change at a point with respect to time, the flow is called

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20. *1 m head is equivalent to

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21. Hydrostatic pressure on a dam depends upon its

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

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

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

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25. Which of the following quantities are dimensionless?

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

27 / 50

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. *In flow, the liquid particles may possess

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29. *The condition for the maximum velocity and discharge is given by (closed flow)

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

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

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32. The Manning's formula for flow in an open channel is given by

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33. In an open channel flow

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34. Gauge pressure is

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35. In an inclined pipe, the pressure difference at its two ends is due to

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

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

38 / 50

38. If H is the height of the liquid above the sill, the effect of end contraction on each side, according to Francis' formula, is

39 / 50

39. Critical depth (he) is given by (where q= rate of flow per unit width of channel)

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

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

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42. *Hydraulic gradient line (except siphon)

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43. A vessel having a depth of 30 cm is filled with water up to a depth of 10 cm from the top level. Find the pressure exerted at a depth of 5 cm and 15 cm from the top of the vessel respectively

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

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45. The pressure less than atmospheric pressure is known as

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46. *The rate of flow through a V-notch varies as:

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

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

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49. If the fluid particles move in a zig-zag way, the flow is called

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50. Poise is the unit of

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