Hydraulics Online Test - Paper 3 » Expert Quiz Test
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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
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1. A triangular notch is preferred to a rectangular notch because

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

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

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

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

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6. *Molecules of fluids get attracted due to

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

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9. Head loss due to friction in a pipe is given by the Darcy-Weisbach equation

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10. *Viscosity of a liquid

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

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12. 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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13. 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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14. The inlet length of a venturimeter

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15. *Stoke is the unit of

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16. For a long pipe, the head loss

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17. The viscosity of liquids varies with temperature

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

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19. Falling drops of water become spheres due to

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20. If fluid or flow parameters at any given instant remain the same at every point in space, it is called:

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

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22. *An orifice is called a large orifice if the water head is

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23. For uniform flow in the channel

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24. In an open channel flow

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25. *The hydraulic ram is a device

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26. *Cavitations is caused by

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27. *If a pitot tube is placed with its nose facing sideways, the liquid

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28. Euler's number is the ratio of

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29. *Head loss increases with

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

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31. *Pressure within a soap bubble is

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32. A substance which deforms continuously under the action of shear stress is called

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33. In an inclined position, a venturimeter records

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34. *Surface float is used to measure

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35. 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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36. *Which of the following statements is valid?

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

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

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39. *Bernoulli's equation assumes that

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40. The ratio of the mean velocity to the surface velocity in open channels is equal to

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41. 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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42. *Losses are more in

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43. If H is the height of the liquid above the sill, the effect of end contraction on each side, according to Francis' formula, is

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44. *The equation of continuity of fluids is applicable only if

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45. 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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46. *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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47. At the vena contracta, the jet has the minimum cross-sectional area, and so the velocity of the liquid at this section will be

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

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49. In fluids, steady flow occurs when

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50. Weber number is the ratio of inertia force to

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