Grid-Connected Renewable Energy Systems MCQs

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1. Which renewable energy source is most commonly used in grid-connected systems?





2. Grid-connected renewable energy systems are primarily designed to:





3. The device used to convert DC power from solar panels to AC power suitable for the grid is called a:





4. In a wind turbine, the generator typically used to convert mechanical energy into electrical energy is:





5. The term “net metering” in grid-connected systems refers to:





6. Which renewable energy source has the highest capacity factor?





7. Grid-connected systems enhance renewable energy integration by:





8. In a grid-connected PV system, the MPPT (Maximum Power Point Tracking) algorithm is used to:





9. Which component of a grid-connected PV system ensures safety by disconnecting from the grid during a blackout?





10. The main advantage of grid-connected systems over standalone systems is:





11. Which renewable energy technology relies on variable speed operation for efficiency?





12. The component used in grid-connected systems to prevent backflow of current into the PV array during nighttime is:





13. Which renewable energy source is most suitable for decentralized grid systems?





14. The process of injecting excess energy into the grid is facilitated by:





15. What is the typical voltage level of AC output from grid-connected inverters?





16. The concept of “islanding” in grid-connected systems refers to:





17. The main challenge faced by grid operators with high penetration of renewable energy is:





18. Which renewable energy source is most affected by intermittency?





19. A hybrid renewable energy system combines:





20. Which control strategy helps in reducing grid disturbances caused by renewable energy sources?





21. Grid-connected renewable energy systems contribute to reducing:





22. Which type of inverter is commonly used in grid-connected PV systems?





23. The integration of grid-connected systems requires compliance with:





24. The purpose of anti-islanding protection in grid-connected systems is to:





25. Which factor does NOT affect the efficiency of grid-connected PV systems?





26. The term “feed-in tariff” refers to:





27. Which renewable energy source is most suitable for grid-connected systems in coastal areas?





28. The concept of “curtailment” in grid-connected systems refers to:





29. Which parameter is crucial for determining the economic viability of grid-connected renewable energy projects?





30. Which renewable energy source requires the largest land area for significant electricity production?





31. The technology used in grid-connected systems to adjust reactive power and improve power factor is:





32. The purpose of a “smart grid” in the context of renewable energy is to:





33. Which renewable energy source has the highest capacity utilization factor?





34. The process of “net billing” allows:





35. Which factor is NOT considered when determining the optimal location for a grid-connected wind farm?





36. The term “grid parity” in renewable energy refers to:





37. The primary function of a transformer in a grid-connected system is to:





38. Which renewable energy source is suitable for grid-connected systems in remote areas?





39. The efficiency of grid-connected PV systems can be improved by:





40. The term “voltage ride-through” in grid-connected systems refers to:





41. The primary advantage of using micro-inverters in grid-connected PV systems is:





42. Which renewable energy source is often criticized for its impact on wildlife?





43. The process of “aggregation” in grid-connected systems refers to:





44. The term “DER” in grid-connected systems stands for:





45. Which renewable energy source has the highest energy density?





46. Which control strategy is used to maintain voltage stability in grid-connected systems?





47. The term “LVRT” (Low Voltage Ride Through) refers to:





48. The technology used in grid-connected systems to synchronize renewable energy sources with the grid is:





49. The process of “islanding detection” in grid-connected systems is crucial to:





50. Which renewable energy source is characterized by a relatively low environmental impact?





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