Hydroelectric Power Plants Interview Questions:

Following are the below Hydroelectric Power Plants Interview Questions and Important Questions which is very useful for interviews and exams

1. Write the advantages, disadvantages and applications of hydroelectric power plant.

2. Explain the criterions for hydro power plant site selection.

3. What are the main considerations for selection of site for a hydroelectric power station.

4. Discuss the various factors which affect the location of site of a hydro power station.

5. What are the factors which determine the location and site of a hydro plant ?

6. What do you understand by hydrology ? How does the study of hydrology help in selecting the site for a hydroelectric power plant ?

7. What is hydrograph ? What informations does it provide ?

8. Discuss the utility of hydrograph and flow duration curve for the power plants.

9. Define run-off. How is it measured. List the factors which affect run-off.

10. What is a mass curve and what information does it provide ? What is its use ?

11. Explain the load duration curve and mass curve with their complete information.

12. Draw and explain single line diagram of hydro plant.

13. Give a layout of hydroelectric power plant. Also explain the principle.

14. Give a general layout of a hydroelectric power plant. Explain the functions of different components in storage reservoir plants.

15. With the help of a simple diagram explain the essential features of hydro power plant.

16. Explain with neat sketch the working of a hydroelectric power plant station and explain the function of each component in it.

17. Water is available in a reservoir at 150 m head. The distance of the reservoir is approximately 2 km from the site. Give all the components of a hydro power plant to be installed at this site. Discuss the utility of each component.

18. What is the function of surge tank ?

19. Explain the functions of the following for hydro power plants: (i) Dam (ii) Spillways (iii) Surge tank (iv) Draft tube.

20. Briefly discuss the function of surge tank in a hydroelectric power station.

21. Briefly discuss the function of penstock in a hydroelectric power station.

22. Explain the phenomenon ‘water hammer’ in hydroelectric power station. State the procedure to overcome this problem.

23. How a surge tank helps in reducing water hammer effect? Describe various types of surge tanks.

24. What is the function of a draft tube. Describe the various types of draft tubes.

25. Classify hydroelectric plants. What factors are taken in location and site selection of this plant ?

26. Classify the hydroelectric power plants based on: (i) Plant capacity (ii) Head (iii) Hydraulic features.

27. Classify the hydroelectric plant on the basis of available water head and discuss.

28. How are hydroelectric power plants classified ?

29. Sketch a typical layout for medium head hydro power plant using Francis turbines. Explain the salient features.

30. Describe with a neat diagram the run-off river plant with pondage.

31. Explain run-off river power plant. How its performance is increased by introducing a pondage in the plant?

32. What are the different types of hydro turbines ? What are their applications ? Discuss their main constructional features.

33. What are the different types of hydro turbines ? Discuss their main constructional details.

34. Describe different turbines and their use in hydroelectric plants.

35. Briefly describe impulse turbine used in hydroelectric station.

36. Briefly describe Kaplan turbine used in hydroelectric power station.

37. Bring out the comparison between impulse, reaction, Kaplan and Francis turbines.

38. Differentiate between the operation of a Pelton turbine and a Francis turbine.

39. What are the characteristics of a water turbine ? Explain the term “governing of turbines”.

40. Draw the operating characteristic (constant speed) curves of a water turbine and explain how these are obtained ?

41. Discuss the following in details.

• Operating characteristics of hydraulic turbines.
• Comparison of impluse and reaction turbines.

42. Explain the governing mechanism of Pelton turbine.

43. What factors should be considered for selection of hydraulic turbines for hydro plants?

44. Clearly bring out the difference between above ground and underground hydroelectric power plants.

45. What is a small hydro plant. Give its merits.

46. With the help of a schematic diagram, explain the working of a “pumped storage plant”. Discuss the advantages and disadvantages of the plant.

47. Draw a pumped storage hydroelectric power plant. Discuss the functions of each component of the plant.

48. Explain with a neat sketch a pumped storage plant.

49. What are pumped storage plants ? Describe with neat sketches the principle of operation of such a plant. Also, discuss the role of the plant in a large interconnected power system.

50. Sketch and describe layout of hydro power plants. Also mention three hydro power plants installed in the country with installed capacity.

51. Discuss features of pumped storage plant.

52. Discuss in brief about hydroelectric power potential in India.

53. Discuss the special features of alternators used in hydro plants.

54. How the number of units are decided in a hydroelectric plant ?

55. Explain the environmental impacts of hydro power plants.

56. Write short notes on the following.

• Hydrological cycle.
• Site selection for hydro power station.
• Hydrograph and flow duration curve.
• Hydraulic dams.
• Storage and pondage.
• Pumped storage hydel plant.
• Selection of water turbine.
• Hydro potential in India.
• Automatic and remote control of hydro plants.
• Hydro plant auxiliaries.