# Hydraulics Online Test – Paper 3

0%
Created by Vikash chaudhary

This is a FREE online test. Beware of scammers who ask for money to attend this test.

Get New Questions in Each Attempt

• Total Questions: 50
• Time Allotted: 50 minutes
• Passing Score: 70%
• Randomization: Yes
• Certificate: Yes
• Do not refresh the page!
• 👍 All the best!

1 / 50

1. *The pressure in pipe flow is normally

2 / 50

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

3 / 50

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

4 / 50

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

5 / 50

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

6 / 50

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

7 / 50

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

8 / 50

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

9 / 50

9. A siphon is used

10 / 50

10. *The energy possessed by a fluid by virtue of its existing pressure is called

11 / 50

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

12 / 50

12. Cavitations in flowing fluid occurs when

13 / 50

13. Pick up the correct statement from the following

14 / 50

14. Which of the following quantities are dimensionless?

15 / 50

15. Cavitations is collapsed by

16 / 50

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

17 / 50

17. *Cipolleti weir is a

18 / 50

18. If the Froude number in open channel flow is equal to 1.0, the flow is called

19 / 50

19. *In flow, the liquid particles may possess

20 / 50

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

21 / 50

21. Falling drops of water become spheres due to

22 / 50

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

23 / 50

23. *The types of instrument used to measure low pressure with accuracy is

24 / 50

24. Chazy's formula is used to determine

25 / 50

25. Open channel flow is

26 / 50

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

27 / 50

27. *Barometers are used to measure

28 / 50

28. *Hydraulic gradient line (H.G.L.) represents the sum of

29 / 50

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

30 / 50

30. For a long pipe, the head loss

31 / 50

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

32 / 50

32. 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

33 / 50

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

34 / 50

34. *Back water curve is caused if there is a

35 / 50

35. 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.)

36 / 50

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

37 / 50

37. The viscosity of liquids varies with temperature

38 / 50

38. Poise is the unit of

39 / 50

39. *If a pitot tube is placed with its nose facing downstream, the liquid

40 / 50

40. *The notch angle for the maximum discharge over a triangular notch is

41 / 50

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

42 / 50

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

43 / 50

43. A rise or fall of liquid in a glass tube of a very small diameter when dipped is

44 / 50

44. 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

45 / 50

45. *Cipolletti weir is a trapezoidal weir having a side slope of

46 / 50

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

47 / 50

47. In fluids, steady flow occurs when

48 / 50

48. 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)

49 / 50

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

50 / 50

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

0%