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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 error 1% in measuring H will produce a

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2. Head loss due to friction in a pipe is given by the Darcy-Weisbach equation

3 / 50

3. *1 m head is equivalent to

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

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5. The pressure less than atmospheric pressure is known as

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6. *Hydraulic gradient is equal to

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7. Reynolds number is the ratio of initial force and

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8. *Barometers are used to measure

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9. Hooke's law for solids is analogous to

10 / 50

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

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11. *Molecules of fluids get attracted due to

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12. 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

13 / 50

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

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14. Liquids or fluids

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15. The depth of flow at which the specific energy is minimum is called

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

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

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

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

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20. Water belongs to

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21. The ratio of the mean velocity to the surface velocity in open channels is equal to

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

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23. With a clinging nappe of a weir, the excess discharge is

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

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25. The minimum head loss will occur in

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26. Water hammer is a phenomenon that occurs

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

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

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29. Cavitations in flowing fluid occurs when

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

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31. Mach number is the ratio of inertia force to

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32. The line joining the points to which the liquid rises in vertical piezometer tubes fitted at different cross-sections of a conduit is known as

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33. *Cipolleti weir is a

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34. Gauge pressure is

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35. The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called

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36. Total head of a particle in motion is the sum of

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

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

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

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41. 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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42. The basic head loss in a long pipe is:

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

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44. If S is the height of the crest above the base of the channel and H is the head of water over the weir, whose length is L and discharge is Q m^3/sec, the velocity of approach Va is

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

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

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47. For the same specific force, the two depths at which the same discharge occurs are called

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

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49. *Venturimeter is used to measure

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50. *Pressure head is given by

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