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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. *Piezometers are used to measure

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2. *Capillary rise is proportional to

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3. In an open channel flow

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4. The most economical section of a circular channel for the maximum discharge is when

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5. In a flowing liquid, a particle may possess

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6. *The imaginary line joining each head of water is called

7 / 50

7. Specific weight of liquid

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8. The flow in which each liquid particle has a definite path is called

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9. In an inclined position, a venturimeter records

10 / 50

10. *The discharge through a rectangular channel is maximum when

11 / 50

11. *The pressure in pipe flow is normally

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

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13. *Capillarity of water is

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14. If the pressure is applied to the surface of a liquid, the liquid transmits the pressure equally in all directions is given by

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15. Hooke's law for solids is analogous to

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16. *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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17. *The hydraulic radius is equal to

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

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

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20. *Orifice-meter is used to measure:

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

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

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23. *Venturimeter is used to measure

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

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25. 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

26 / 50

26. *The float method is used to measure

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

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28. *Cipolleti weir is a

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29. The viscosity of gases varies with temperature

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

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31. Pick up the correct statement from the following

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

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

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

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35. The numerical value of vorticity is.....of the rotation

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

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37. In the case of vortex flow, the level of water at the center is

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38. *To measure very low pressure, we use:

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

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

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

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

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

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47. *Hydraulic gradient is equal to

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48. *Bernoulli's equation is applied to

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49. *Pressure head is given by

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50. *Which of the following statements is valid?

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