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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 velocity in a fluid flow changes with respect to the length of the direction of the flow, it is called

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2. Hooke's law for solids is analogous to

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

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4. If the density of a fluid changes from point to point in a flow region, it is called

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

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7. In fluids, steady flow occurs when

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

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9. *The flow in which the path of individual particles of liquid cross each other is called

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

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

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12. *The float method is used to measure

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

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14. Gauge pressure is

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

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

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17. *A stepped notch is a combination of

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18. *Which of the following statements is valid?

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19. *Hydraulic gradient line (except siphon)

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20. The basic head loss in a long pipe is:

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21. *Piezometers are used to measure

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22. *Pressure within a soap bubble is

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23. *The energy possessed by a fluid by virtue of its existing pressure is called

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24. *The main assumption of Bernoulli's equation is

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

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26. *Uniform flow is said to occur when

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27. Specific weight of liquid

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28. Falling drops of water become spheres due to

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29. The pressure difference between inside and outside of a droplet of water is given by (Where σ is surface tension and d is the diameter of the droplet.)

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

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31. Open channel flow is

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

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

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34. *Stoke is the unit of

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35. Liquids

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36. Hydraulic gradient line and total energy line are

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37. Cavitations in flowing fluid occurs when

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

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

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

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

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43. The term z is known as

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44. Discharge over an ogee weir remains the same as that of

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45. The continuity equation

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

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47. A ideal fluid

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48. *Viscosity of a liquid

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49. Rotation is defined as the movement of a fluid element in such a way that both of its axes rotate in...

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50. *A flow is said to be laminar when

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