Do you want to make a career in Hydroelectric Power Plant? Then get ready to answer some popular Hydroelectric Power Plant Interview Questions and answers that you can expect in your next Hydroelectric Power Plant interview. A Hydroelectric Power Plant job interview is one of the most challenging interviews, So, it is essential that you anticipate and prepare for the questions that might be asked of you. Here are some of the most common Hydroelectric Power Plant job interview questions and answers to prepare yourself. So, prepare well and ace your Hydroelectric Power Plant interview. Check out wisdom jobs Hydroelectric Power Plant interview questions and answers to crack your job interview.
Question 1. What Are The Essential Elements Of The Hydroelectric Power Plant?
Answer :
Some of the essential elements of hydroelectric power plant are:
Question 2. What Is The Significance Of Dam?
Answer :
Question 3. What Are Hydrograph And Its Significance?
Answer :
Hydrograph is a graphical representation between the discharge or flow with time. It is plotted with flow as ordinates (Y-axis) and time intervals as abscissas ( X-axis). The ordinates may be plotted in terms of the gauge height, the number of cubic meters per second per square kilometer, the power in kW that can be developed. The abscissas may be taken in terms of hours, days, weeks or months. It also indicates the power available from the stream at different times of the day or year (particular period). Hydrograph is similar to load curve and used to study the electric power.
A Hydrograph provides the following information:
Question 4. What Is The Use Of Spillway?
Answer :
When the water level in the reservoir basin rises, the stability of the dam structure is endangered. To relieve the reservoir of this excess water, a structure is provided in the body of the dam. This structure is called spillway. This is constructed to act as safety value. This provides structural stability of the dam under conditions of the floods without raising the reservoir level above High Flood Level.
Question 5. What Is Mass Curve?
Answer :
Mass curve indicates the total volume of run-off in m3 up to certain time. The abscissa may be day, month or year. This curve is obtained from the records of average monthly flow. The slope of curve at any point gives the rate of flow at that time. These curves are used to determine the capacity of the storage reservoirs for hydro projects.
Question 6. What Is Called Hydro Electric Power Station?
Answer :
The power station, in which the kinetic energy of water is converted into electrical energy, is called hydro-electric power station.
Question 7. What Is The Source Of Generation In The Hydroelectric Power Station?
Answer :
Water.
Question 8. What Are The Different Sections Of A Hydroelectric Power Station?
Answer :
The different sections of a hydroelectric power station are dams, spillways, gates, penstock & hydroelectric generators.
Question 9. What Is The Function Of The Dam In A Hydroelectric Power Station?
Answer :
The function of dam is to create required water head and store water in catchment area.
Question 10. Where Is Water Stored?
Answer :
Water is stored in the reservoir of the catchment area.
Answer :
The following factors are to be considered for selecting the site of a hydro-electric power plant:-
Question 12. What Are The Merits & Demerits Of The Hydro-electric Power Station?
Answer :
Merits:
Demerits:
Question 13. What Is The Water Turbine?
Answer :
Water turbine is a prime mover used for the alternator at the hydro electric power plant which changes the direction of the flowing water and converts the same to useful mechanical energy and also gives mechanical energy to the alternator.
Question 14. What Are The Types Of Water Turbines Used In A Hydroelectric Power Plant?
Answer :
There are two types of turbines, namely:
Question 15. What Is The Method Of Selection Of Water Turbines?
Answer :
Impulse turbine is selected for very high heads and a small quantity of water as it utilizes the kinetic energy of water. Reaction turbine is selected for low and medium head and the large quantity of water as it utilizes the pressure of the water.
Answer :
Question 17. What Is The Utility Of Multipurpose Hydroelectric Project?
Answer :
It provides power generation, irrigation, fishery and flood control at the same time.
Question 18. What Are The Names Of Leading Hydro-electric Power Station Installed In India?
Answer :
Bhakra Nangal, Chambal project, Kayla etc.
Question 19. How Is Water Turbines Mounted?
Answer :
The impulse turbine is mounted horizontally whereas the reaction turbine is mounted vertically.
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