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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. *Rotameter is used for measuring

2 / 50

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

3 / 50

3. *Stoke is the unit of

4 / 50

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

5 / 50

5. Super-critical flow occurs in

6 / 50

6. The term z is known as

7 / 50

7. The viscosity of gases varies with temperature

8 / 50

8. Hydraulic gradient line for an open flow channel is

9 / 50

9. The pressure less than atmospheric pressure is known as

10 / 50

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

11 / 50

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

12 / 50

12. A steady uniform flow is through a

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13. In a flowing liquid, a particle may possess

14 / 50

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

15 / 50

15. Specific weight of liquid

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

17 / 50

17. 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.)

18 / 50

18. The minimum head loss will occur in

19 / 50

19. *The specific weight of water 1000 kg/m^3

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

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21. *The energy possessed by a fluid by virtue of its existing pressure is called

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22. The attraction among different particles of the same material is

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23. *If a pitot tube is placed with its nose facing downstream, the liquid

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24. A siphon is an

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25. *Orifice-meter is used to measure:

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26. Liquids or fluids

27 / 50

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

28 / 50

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

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29. Water belongs to

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30. The inlet length of a venturimeter

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

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32. In fluids, steady flow occurs when

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33. 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)

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

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35. 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)

36 / 50

36. 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

37 / 50

37. A rise or fall of liquid in a glass tube of a very small diameter when dipped is

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

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39. *The hydraulic radius is equal to

40 / 50

40. Hydraulic gradient line and total energy line are

41 / 50

41. The maximum velocity in an open channel occurs

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42. *Piezometers are used to measure

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43. *Hydraulic gradient line (H.G.L.) represents the sum of

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44. *Total energy line (T.E.L) represents the sum of

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45. *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

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

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

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

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

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50. The profile of rising water on the upstream side of the dam is called

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