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%
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1. Find the capillary rise/fall in a glass tube when immersed in mercury with the following given data: surface tension, σ = 0.52 gmf/cm, angle of contact, θ = 130°, S.G. of mercury = 13.6, diameter of the pipe = 2.5 mm.

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2. Cavitations is collapsed by

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

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4. Liquids or fluids

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5. *Surface tension is the force

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6. Euler's number is the ratio of

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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 upper surface of the weir over which water flows is known as:

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9. In an inclined position, a venturimeter records

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

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

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13. *Venturimeter is used to measure

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14. *The phenomenon occurring in an open channel when a rapidly flowing stream abruptly changes to a slowly flowing stream, causing a distinct rise of the liquid surface, is

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

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16. In an open channel flow

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17. *Rotameter is used for measuring

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18. In a venturimeter, the divergent cone is kept

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19. For uniform flow in the channel

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

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21. *Pressure head is given by

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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 two depths at which the specific energy is the same are called

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

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

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27. Chazy's formula is used to determine

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

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29. If the fluid particles move in a zig-zag way, the flow is called

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30. In the case of vortex flow, the level of water at the center is

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

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

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34. 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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35. *The hydraulic ram is a pump that works on

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36. The profile of rising water on the upstream side of the dam is called

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

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38. *The condition for the maximum velocity and discharge is given by (closed flow)

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39. A siphon is an

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

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41. *Bernoulli's equation assumes that

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42. The inlet length of a venturimeter

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43. The capillary rise or fall of the liquid is given by

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

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

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46. 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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47. *The hydraulic ram is a device

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48. Gauge pressure is

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49. The viscosity of liquids varies with temperature

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50. *Orifice-meter is used to measure:

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