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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. *The floating method is used for the measurement of

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2. Gauge pressure is

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3. Cavitations is collapsed by

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

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5. Euler's number is the ratio of

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6. "Manning's formula is used for

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

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8. The maximum velocity in an open channel occurs

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9. 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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10. Pick up the correct statement from the following

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11. The thickness of a sharp-crested weir is kept less than

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

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

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14. *The flow in which the path of individual particles of liquid cross each other is called

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15. *Bernoulli's equation is applied to

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

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

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18. 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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19. *If the velocity, pressure, density, etc., do not change at a point with respect to time, the flow is called

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

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

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22. *Surface tension is the force

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

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24. *The types of instrument used to measure low pressure with accuracy is

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

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26. *Surface float is used to measure

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27. 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.)

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28. Chazy's formula is used to determine

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29. Super-critical flow occurs in

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

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

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

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33. *Piezometers are used to measure

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34. In an open channel flow

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35. Cavitations in flowing fluid occurs when

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36. Mach number is the ratio of inertia force to

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

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

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40. *The rate of flow through a venturimeter varies as

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41. The multiplying factor for converting one poise into MKS unit of dynamic viscosity is

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42. *Manometers are used to measure

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43. *A stepped notch is a combination of

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44. 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

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45. Poise is the unit of

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

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47. Which of the following quantities are dimensionless?

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48. *Uniform flow is said to occur when

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49. *Variation in volume of liquid with variation in pressure is called

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50. In a flowing liquid, a particle may possess

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