Hydraulics Online Test – Paper 3

1. Cavitations is collapsed by

2. The imaginary line drawn such that the tangents at its all points indicate the direction of the velocity of the fluid particle at each point is called

3. *The atmospheric pressure varies with

4. *Bernoulli's equation is applied to

5. "Manning's formula is used for

6. *Barometers are used to measure

7. The water immediately downstream of the conduit or weir is called

8. *Venturimeter is used to measure

9. *Water cushion is used to

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

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

12. In an open tube, the free surface of mercury remains

13. Water belongs to

14. If the pressure is applied to the surface of a liquid, the liquid transmits the pressure equally in all directions is given by

15. In the case of leveling by a level pipe, the level is indicated by

16. *The continuity equation deals with the law of conservation of

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

18. *Bernoulli's equation assumes that

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

20. "Maximum efficiency of power transmission through a pipe is

21. The depth of flow after the hydraulic jump is

22. In a venturimeter, the divergent cone is kept

23. 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

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

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

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

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

28. The upward water pressure at the base of the structure is called

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

30. *The orifice used for low discharge is

31. Gauge pressure is

32. *Pressure within a soap bubble is

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

34. Poise is the unit of

35. The maximum velocity in an open channel occurs

36. 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

37. *An ideal flow of a liquid obeys

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

39. If the volume of a liquid weighing 3000 kg is 4 cubic meters, then 0.75 is its

40. Euler's number is the ratio of

41. Which of the following quantities are dimensionless?

42. *If the volume of liquid weighing 3000 kg is 4 cubic meters, then the specific gravity is

43. *A flow is said to be laminar when

44. The minimum head loss will occur in

45. For uniform flow in the channel

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

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

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

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

50. *Orifice-meter is used to measure: