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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 magnitude of capillary rise is more in:

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2. The viscosity of liquids varies with temperature

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

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4. For a long pipe, the head loss

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5. *Barometers are used to measure

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6. *What affects the quantity of mass of a fluid?

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

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

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9. Liquids

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

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11. The difference in pressure head measured by a mercury-oil differential manometer for a 20 cm difference of mercury level will be (specific gravity of oil-0.8)

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12. *The hydraulic ram is a device

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13. *Orifice-meter is used to measure:

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14. *The actual velocity through an orifice is........... than the theoretical velocity.

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15. Chazy's formula is used to determine

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16. *Pressure within a soap bubble is

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

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18. Mass density of liquid (p) is given by

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

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

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21. *To measure atmospheric pressure, we use

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22. Reynolds number is the ratio of initial force and

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23. Which of the following quantities are dimensionless?

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

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25. *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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26. ........ is defined as the maximum increase in water level in the path of the flow of water

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27. The total energy of a liquid in motion is equal to:

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

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

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31. *A pitot tube is used to measure

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32. *1 m head is equivalent to

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33. *Venturimeter is used to measure

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34. An intensifier is used to increase

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35. *The upper surface of the weir over which water flows is known as:

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36. *Molecules of fluids get attracted due to

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37. Velocity of flow may be determined using:

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38. 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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39. *Bernoulli's equation is applied to

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

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

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

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43. *The phenomenon occurring in an open channel when a rapidly flowing stream abruptly changes to a slowly flowing stream, causing a distinct rise of the liquid surface, is

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44. In an open tube, the free surface of mercury remains

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

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46. 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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47. Pick up the correct statement from the following

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48. If the Froude number in open channel flow is less than 1.0, the flow is called

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

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50. *The atmospheric pressure varies with

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