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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 total head of the nozzle of a pipe is 37.5m and the discharge is 1 cubic meter per second, then the power generated is

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

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

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4. In an open channels the analysis of a sugar is done by using

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5. *The hydraulic ram is a device

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6. Velocity of flow may be determined using:

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

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8. The viscosity of gases varies with temperature

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9. *The wetted perimeter of a channel is given by

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10. *Barometers are used to measure

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

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12. The maximum velocity in an open channel occurs

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13. If the Froude number in open channel flow is more than 1.0, the flow is called

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14. One horsepower is equal to

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15. Mouthpieces are used to measure

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

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

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

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19. Poise is the unit of

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

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21. A siphon is used

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

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23. In an open channel flow

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24. In fluids, steady flow occurs when

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

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

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27. Super-critical flow occurs in

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

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29. The hydrostatic force exerted by 2 m deep water on the gate downstream is equal to

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30. *The discharge passing through the crest having a length of 1.25m, a height of the flow of water 0.25m, and Cd = 0.035 is

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31. The attraction among different particles of the same material is

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32. 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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33. *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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34. *Variation in volume of liquid with variation in pressure is called

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35. *Which of the following statements is valid?

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36. *The atmospheric pressure varies with

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37. *Surface tension is the force

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38. Falling drops of water become spheres due to

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

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40. *Stoke is the unit of

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

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42. Which of the following quantities are dimensionless?

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

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44. *The floating method is used for the measurement of

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45. Specific weight of sea water is more than that of pure water because of

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

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47. The pressure less than atmospheric pressure is known as

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48. Hydraulic gradient line for an open flow channel is

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49. *A pitot tube is used to measure

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50. 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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