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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. For a circular channel, the wetted perimeter is given by (where θ=half the angle subtended by the water at the center and R= radius of circular channel)

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

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3. *Capillary rise is proportional to

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4. Hydrostatic pressure on a dam depends upon its

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

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

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7. 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

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

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9. Falling drops of water become spheres due to

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

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

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12. An intensifier is used to increase

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13. Liquids

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14. *The float method is used to measure

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15. Velocity of flow may be determined using:

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16. *Barometers are used to measure

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17. *An ideal flow of a liquid obeys

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18. Pick up the correct statement from the following

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19. *If a pitot tube is placed with its nose facing sideways, the liquid

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

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21. As per our convenience which one is correct with respect to the dimensionless number?

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22. *Pressure head is given by

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

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

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25. 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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26. *The notch angle for the maximum discharge over a triangular notch is

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

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28. 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

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29. *Bernoulli's equation assumes that

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

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31. 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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32. 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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33. The viscosity of liquids varies with temperature

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

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35. In an open channel flow

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36. Euler's number is the ratio of

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37. 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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38. *To measure atmospheric pressure, we use

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

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

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41. *If the volume of liquid weighing 3000 kg is 4 cubic meters, then the specific gravity is

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

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

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

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

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

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47. *Molecules of fluids get attracted due to

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48. *Stoke is the unit of

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49. One horsepower is equal to

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

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