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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. "Manning's formula is used for

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

3 / 50

3. *Differential manometers are used to measure

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4. *If the volume of a liquid weighing 2400 kg is 3 cubic meters, then 0.8 is its:

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

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6. Total pressure on the top of a closed cylindrical vessel completely filled with liquid is directly proportional to

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7. 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.

8 / 50

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

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

10 / 50

10. *Back water curve is caused if there is a

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11. If the pressure is applied to the surface of a liquid, the liquid transmits the pressure equally in all directions is given by

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

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13. Euler's number is the ratio of

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14. A fluid particle may possess the displacement of

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

16 / 50

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

17 / 50

17. For uniform flow in the channel

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18. 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)

19 / 50

19. *The upper surface of the weir over which water flows is known as

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20. *The upper surface of the weir over which water flows is known as:

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21. Head loss due to friction in a pipe is given by the Darcy-Weisbach equation

22 / 50

22. 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

23 / 50

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

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24. *Capillarity of water is

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25. *Hydraulic gradient is equal to

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

27 / 50

27. One horsepower is equal to

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28. The error 1% in measuring H will produce a

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29. When the pipes are connected in parallel, the total loss of head

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

32 / 50

32. *Cipolleti weir is a

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33. *Pressure head is given by

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34. *If the volume of liquid weighing 3000 kg is 4 cubic meters, then the specific gravity is

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

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

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

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

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

40 / 50

40. Rotation is defined as the movement of a fluid element in such a way that both of its axes rotate in...

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

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42. An oil of specific gravity 0.7 and pressure 0.14 kgf/cm^2 will have the height of oil as

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43. 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.)

44 / 50

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

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45. 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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46. *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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47. To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m^3/sec, the length of the weir will be (Cd = 0.62)

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48. Hooke's law for solids is analogous to

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

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50. *The atmospheric pressure varies with

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