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

2 / 50

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

3 / 50

3. Practical fluids possess

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4. *The hydraulic radius is equal to

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5. Reynolds number is the ratio of initial force and

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6. *Rotameter is used for measuring

7 / 50

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

8 / 50

8. Which of the following has the highest coefficient of discharge:

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

10 / 50

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

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11. *Uniform flow is said to occur when

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12. From a nozzle exposed to the atmosphere, the liquid jet traverses

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13. In the case of a broad-crested weir, the depth of water h at the end of the still is given by

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14. *Orifice-meter is used to measure:

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15. Specific weight of liquid

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16. *Pressure head is given by

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

18 / 50

18. The upward water pressure at the base of the structure is called

19 / 50

19. When the pipes are connected in parallel, the total loss of head

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20. *The rate of flow through a V-notch varies as:

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21. Velocity of flow may be determined using:

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22. *The width of a weir with end contraction is

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23. *A stepped notch is a combination of

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24. *The atmospheric pressure varies with

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

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

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27. The error 1% in measuring H will produce a

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28. *The most economical section of a circular channel for the maximum velocity is when

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

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31. A ideal fluid

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32. The viscosity of liquids varies with temperature

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

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34. *The hydraulic ram is a pump that works on

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35. *The orifice used for low discharge is

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36. 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

37 / 50

37. At the vena contracta, the jet has the minimum cross-sectional area, and so the velocity of the liquid at this section will be

38 / 50

38. *Bernoulli's equation assumes that

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39. Cavitations in flowing fluid occurs when

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40. *Piezometers are used to measure

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41. Hydraulic gradient line and total energy line are

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42. The minimum head loss will occur in

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

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

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45. *To measure atmospheric pressure, we use

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46. In a flowing liquid, a particle may possess

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47. Poise is the unit of

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48. *Molecules of fluids get attracted due to

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49. *1 m head is equivalent to

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

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