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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. An intensifier is used to increase

2 / 50

2. *Cavitations is caused by

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3. *Orifice-meter is used to measure:

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4. *If the velocity of fluid particles varies from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be

5 / 50

5. Hooke's law for solids is analogous to

6 / 50

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

7 / 50

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

8 / 50

8. 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

9 / 50

9. If the Froude number in open channel flow is more than 1.0, the flow is called

10 / 50

10. *The magnitude of capillary rise is more in:

11 / 50

11. *Stoke is the unit of

12 / 50

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

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

14 / 50

14. Hydraulic gradient line and total energy line are

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15. Liquids or fluids

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

17 / 50

17. The viscosity of liquids varies with temperature

18 / 50

18. 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

19 / 50

19. *Water cushion is used to

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

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

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22. Euler's number is the ratio of

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23. For uniform flow in the channel

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24. Hydrostatic pressure on a dam depends upon its

25 / 50

25. For any channel section, the specific energy increase with

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26. *Head loss increases with

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27. The water immediately downstream of the conduit or weir is called

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28. *If the velocity in a fluid flow does not change with respect to the length of the direction of flow, it is called

29 / 50

29. In an open channel flow

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30. A fluid particle may possess the displacement of

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31. The discharge through a V-notch weir is directly proportional to:

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32. If the Froude number in open channel flow is equal to 1.0, the flow is called

33 / 50

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

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

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35. The pressure less than atmospheric pressure is known as

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36. 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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37. In an open channel flow

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38. The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called

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39. For the flow of liquid from an open-ended tube (nozzle) leading to the formation of a spray of liquid drops, the number generally is

40 / 50

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

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41. 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.

42 / 50

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

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43. 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

44 / 50

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

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45. If the volume of a liquid weighing 3000 kg is 4 cubic meters, then 0.75 is its

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46. 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

47 / 50

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

48 / 50

48. *Pressure within a soap bubble is

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49. *An ideal flow of a liquid obeys

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50. For a long pipe, the head loss

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