Hydraulics Online Test - Paper 3 » Expert Quiz Test
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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%
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1. *The magnitude of water hammer depends upon

2 / 50

2. *A pitot tube is used to measure

3 / 50

3. 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

4 / 50

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

5 / 50

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

6 / 50

6. *The pressure in pipe flow is normally

7 / 50

7. *Water cushion is used to

8 / 50

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

9 / 50

9. In an open channel flow

10 / 50

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

11 / 50

11. The basic head loss in a long pipe is:

12 / 50

12. *Rotameter is used for measuring

13 / 50

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

14 / 50

14. At the vena contracta, the jet has the minimum cross-sectional area, and so the velocity of the liquid at this section will be

15 / 50

15. 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.

16 / 50

16. In the case of a broad-crested weir, the depth of water h at the end of the still is given by

17 / 50

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

18 / 50

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

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19. Hydraulic gradient line for an open flow channel is

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20. If the velocity in a fluid flow changes with respect to the length of the direction of the flow, it is called

21 / 50

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

22 / 50

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

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

24 / 50

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

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25. *The main assumption of Bernoulli's equation is

26 / 50

26. Poise is the unit of

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27. In an open channel flow

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28. A triangular notch is preferred to a rectangular notch because

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

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30. *Viscosity of a liquid

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

32 / 50

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

33 / 50

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

34 / 50

34. Falling drops of water become spheres due to

35 / 50

35. 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

36 / 50

36. Pick up the correct statement from the following

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37. Hydraulic gradient line and total energy line are

38 / 50

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

39 / 50

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

40 / 50

40. The two depths at which the specific energy is the same are called

41 / 50

41. *Pascal's law states that pressure at a point is equal in all directions

42 / 50

42. Gauge pressure is

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43. Which of the following is the example of laminar flow?

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44. Open channel flow is

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

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46. *The discharge through a rectangular channel is maximum when

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47. Chazy's formula is used to determine

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

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49. Cavitations in flowing fluid occurs when

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

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