Hydraulics Online Test – Paper 3

1. "Manning's formula is used for

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

3. The two depths at which the specific energy is the same are called

4. Which of the following quantities are dimensionless?

5. *Which of the following statements is valid?

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

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

8. 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 V_a is

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

10. *Surface float is used to measure

11. For uniform flow in the channel

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

13. For a long pipe, the head loss

14. 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

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

16. In an open channel flow

17. *Head loss increases with

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

19. *Hydraulic gradient is equal to

20. In a venturimeter, the divergent cone is kept

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

22. For the same specific force, the two depths at which the same discharge occurs are called

23. A steady uniform flow is through a

24. *The rise of the water table, which takes place due to the transformation of the unstable shooting flow (super-critical) to the stable streaming is called

25. *Pressure within a soap bubble is

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

27. *Capillary rise is proportional to

28. If the fluid particles move in straight lines and all the lines are parallel to the surface, the flow is called

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

30. For the flow of liquid from an open-ended tube (nozzle) leading to the formation of a spray of liquid drops, the number generally is

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

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

33. A ideal fluid

34. *The pressure in pipe flow is normally

35. *If the velocity, pressure, density, etc., do not change at a point with respect to time, the flow is called

36. *Chazy's formula is given by

37. *The difference between the total energy line and the hydraulic gradient line is

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

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

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

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

42. Liquids or fluids

43. One horsepower is equal to

44. Super-critical flow occurs in

45. *The orifice used for low discharge is

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

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

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

49. A fluid particle may possess the displacement of

50. *The hydraulic radius is equal to