Test your basic knowledge |

Renewable Energy

Subject : science
Instructions:
  • Answer 45 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Heat is recovered as steam or hot water to: 1. Create electricity 2. Heat buildings






2. Least expensive alternate energy - Sustainable - Renewable - No carbon emission - Once tower is up - almost no cost to maintain






3. Burning to get heat and electricity






4. Finite supply being used faster than they can be replenished






5. Compact biomass with high temperatures - increading the VED






6. Volumetric energy density---- increased by pelletisation






7. Hardness - volatility


8. Air is heated from ground - warm air flows upward - cold air replaces it






9. Bacteria ferment BM with sugars






10. Produces electricity and heat






11. Time - heat - pressure






12. Just burning biomass






13. High start-up cost - Unreliable - Energy companies see it as a supplemental power - Strong winds usually not near population - Energy grids are not set up for wind






14. Acidic precursors from coal mines get into surrounding water sources due to rain flushing them out






15. Photovoltaic (PV) devices or Solar Energy Plant






16. Air cools more quickly over land than water






17. Lowest rank of coal






18. Secondary Pollution (Toxic materials and alcohols - Blocking the sun for some animals - No direct pollution though!) - Bird death ray - Startup cost






19. Burning wood






20. Most used energy source in the united states






21. Air heated more from ground near equator






22. Environmental Impact - High startup cost - Low efficiency in some cases






23. Barrage dam






24. Shifting of ground as a result of drilling/mining under it






25. What country leads the world in wind energy generating?






26. Solid to liquid biomass with chemistry and heat






27. The difference between low and high tide. the height difference.






28. Where the most Geothermal Energy is produced in all of the United States






29. Bacteria breaks biomass down without oxygen with product mixed gas. LFG's






30. Release less than 1% of CO2 - Hydrogen Sulfide pollution - 97% less acid rain pollutants - Sources of geothermal are often National Treasures






31. Natural gas that is super cooled to gas phase so it can be transported easier/safer






32. Burning 'rubbish.'






33. Radiant energy from the sun heats Earth and atmosphere






34. Same as pyrolysis BUT - more heat and less gas






35. Naturally occurring substance that can potentially be extracted using modern technology






36. Energy resource that can replenish itself






37. It's reliable and consistent - It gives off very little pollution - Lessen the burden of fossil fuels and nuclear energy!






38. Replenish themselves or are continuously present






39. Pumping water into an oil well to increase pressure and improve recovery






40. Mechanical energy (wind) to electricity






41. Energy that can be obtained from movement of water due to gravitational pull of sun - moon - and Earth's rotation.






42. Pockets of hot water or steam underground






43. Most used renewable resource in the United States






44. Known deposits which can be extracted from profitably using modern technology under certain economic conditions






45. Heat and Electricity