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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. 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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2. Which of the following quantities are dimensionless?

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3. *Chazy's formula is given by

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4. Water hammer is a phenomenon that occurs

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5. *Molecules of fluids get attracted due to

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

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7. If the specific gravity of oil is 0.7, then find the density of oil

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

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9. Mach number is the ratio of inertia force to

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10. If the forces are due to inertia and gravity, and frictional resistance plays only a minor role, the design of channels is made by comparing

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11. *Rotameter is used for measuring

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12. *The difference between the total energy gradient line and the total energy line is

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13. An intensifier is used to increase

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14. *Capillarity of water is

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

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16. A fluid particle may possess the displacement of

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17. *The magnitude of capillary rise is more in:

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18. *A flow is said to be laminar when

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19. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a triangular notch is

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20. Liquids

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

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22. 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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23. *The main assumption of Bernoulli's equation is

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

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

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26. *If the velocity, pressure, density, etc., do not change at a point with respect to time, the flow is called

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27. *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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28. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a rectangular notch is

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29. The continuity equation

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30. The section of the Jet leaving an orifice, having the minimum cross-section area, is called

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

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32. In an inclined pipe, the pressure difference at its two ends is due to

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33. 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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34. Falling drops of water become spheres due to

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35. *Differential manometers are used to measure

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

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37. The viscosity of gases varies with temperature

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38. *In flow, the liquid particles may possess

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

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40. *The upper surface of the notch over which water flows is known as

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

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

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

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44. Reynolds number is the ratio of initial force and

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45. *Which of the following statements is valid?

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46. *Bernoulli's equation is applied to

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47. For a long pipe, the head loss

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48. The Manning's formula for flow in an open channel is given by

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49. A ideal fluid

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50. *1 m head is equivalent to

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