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

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2. *To measure atmospheric pressure, we use

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3. *If the velocity of fluid particles varies from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be

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

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

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6. *The hydraulic radius is equal to

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

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8. *Venturimeter is used to measure

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9. When the fluid is at rest, the shear stress is

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10. *Piezometers are used to measure

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

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12. *Pressure head is given by

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

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

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15. *Surface tension is the force

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16. Poise is the unit of

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

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18. The numerical value of vorticity is.....of the rotation

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19. The term z is known as

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

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22. The continuity equation

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23. A siphon is an

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24. *If the velocity in a fluid flow does not change with respect to the length of the direction of flow, it is called

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

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

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

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

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

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31. The viscosity of gases varies with temperature

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32. 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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33. Which of the following quantities are dimensionless?

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

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

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36. The depth of flow after the hydraulic jump is

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

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

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39. *To measure very low pressure, we use:

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40. *Stoke is the unit of

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41. Open channel flow is

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42. The thickness of a sharp-crested weir is kept less than

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43. Chazy's formula is used to determine

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

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

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46. *Orifice-meter is used to measure:

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47. Gauge pressure is

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

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49. For a circular channel, the wetted perimeter is given by (where θ=half the angle subtended by the water at the center and R= radius of circular channel)

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50. *Uniform flow is said to occur when

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