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

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2. To avoid an interruption in the flow of a siphon, the air vessel is provided

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3. *An ideal flow of a liquid obeys

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4. *Viscosity of a liquid

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5. ........ is defined as the maximum increase in water level in the path of the flow of water

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6. *Orifice-meter is used to measure:

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7. The minimum head loss will occur in

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

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9. *Pressure within a soap bubble is

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

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11. 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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12. *The continuity equation deals with the law of conservation of

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13. A siphon is used

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

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15. *A stepped notch is a combination of

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

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17. 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

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18. The pressure less than atmospheric pressure is known as

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19. *Manometers are used to measure

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

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

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22. *The wetted perimeter of a channel is given by

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

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

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25. Flow in pipes is turbulent if the Reynolds number is

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

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

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28. *The condition for the maximum velocity and discharge is given by (closed flow)

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

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

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31. *Rotameter is used for measuring

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

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33. 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.

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34. Weber number is the ratio of inertia force to

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35. *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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36. *Back water curve is caused if there is a

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

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

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39. Cavitations in flowing fluid occurs when

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40. Specific weight of sea water is more than that of pure water because of

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41. Liquids or fluids

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42. *Capillary rise is proportional to

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43. Hooke's law for solids is analogous to

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

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45. *Bernoulli's theorem deals with the law of conservation of

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

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

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49. The term z is known as

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

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