Biomass MCQs, December 23, 2025July 12, 2024 by u930973931_answers 50 min Score: 0 Attempted: 0/50 Subscribe 1. What is biomass? (A) Energy derived from fossils (B) Organic material derived from plants and animals (C) Non-renewable source of energy (D) Energy extracted from wind 2. Which of the following is not a form of biomass? (A) Wood (B) Coal (C) Crop residues (D) Animal waste 3. Which type of biomass is directly used for heating and cooking in many developing countries? (A) Biogas (B) Ethanol (C) Bagasse (D) Charcoal 4. Which process converts biomass into liquid biofuels like ethanol? (A) Pyrolysis (B) Fermentation (C) Gasification (D) Combustion 5. What is the main advantage of using biomass as a renewable energy source? (A) It is completely carbon-neutral (B) It is available in abundant quantities (C) It doesn’t require any processing (D) It is inexpensive to produce 6. Which biomass feedstock is used to produce biogas through anaerobic digestion? (A) Algae (B) Corn stover (C) Food waste (D) Wood chips 7. Which biomass conversion technology involves burning organic matter to produce heat? (A) Gasification (B) Fermentation (C) Combustion (D) Transesterification 8. Which country is the largest producer of bioethanol from biomass? (A) Brazil (B) United States (C) China (D) India 9. What is a major disadvantage of using biomass as a fuel source? (A) High cost of production (B) Low energy efficiency (C) Dependence on fossil fuels (D) Competition with food production 10. Which biomass-derived product is used as a soil conditioner and fertilizer? (A) Biogas (B) Charcoal (C) Biochar (D) Biodiesel 11. Which process involves the thermal decomposition of biomass in the absence of oxygen to produce bio-oil? (A) Gasification (B) Combustion (C) Fermentation (D) Pyrolysis 12. Which biomass feedstock is commonly used in the production of cellulosic ethanol? (A) Sugarcane (B) Wheat (C) Switchgrass (D) Rapeseed 13. Which type of biomass is derived from the remains of plants and animals that lived millions of years ago? (A) Geothermal (B) Hydroelectric (C) Fossil (D) Wind 14. Which technology is used to convert solid biomass into a gaseous fuel? (A) Combustion (B) Gasification (C) Transesterification (D) Fermentation 15. Which biomass conversion process produces biodiesel from vegetable oils or animal fats? (A) Gasification (B) Combustion (C) Transesterification (D) Fermentation 16. What is the main environmental benefit of using biomass for energy production? (A) Reduced greenhouse gas emissions (B) Increased air pollution (C) Depletion of natural resources (D) Soil erosion 17. Which of the following is an example of a second-generation biofuel? (A) Ethanol from corn (B) Biodiesel from soybeans (C) Biogas from food waste (D) Cellulosic ethanol from switchgrass 18. Which process involves the breakdown of organic materials by bacteria in the absence of oxygen to produce biogas? (A) Fermentation (B) Gasification (C) Anaerobic digestion (D) Combustion 19. What is the primary advantage of using algae as a biomass feedstock? (A) High land requirement (B) Fast growth rate (C) Limited availability (D) Low oil content 20. Which biomass feedstock is used to produce biodiesel? (A) Algae (B) Corn (C) Wood (D) Animal waste 21. Which of the following is a potential environmental concern associated with large-scale biomass production? (A) Reduced soil fertility (B) Increased biodiversity (C) Enhanced carbon sequestration (D) Reduced water consumption 22. Which biomass conversion process converts agricultural and forestry residues into heat and power? (A) Combustion (B) Gasification (C) Fermentation (D) Pyrolysis 23. Which type of biomass is primarily used in the production of biogas? (A) Microalgae (B) Switchgrass (C) Food waste (D) Sawdust 24. Which process converts biomass into solid biofuels like wood pellets? (A) Pyrolysis (B) Fermentation (C) Gasification (D) Densification 25. Which of the following is a potential disadvantage of using biomass energy? (A) Renewable nature (B) Variability in supply (C) Low energy density (D) Minimal greenhouse gas emissions 26. Which biomass feedstock is primarily used in the production of cellulosic ethanol? (A) Sugarcane (B) Corn (C) Switchgrass (D) Wheat 27. Which process involves converting biomass into a liquid biofuel through heating in the presence of a catalyst? (A) Transesterification (B) Fermentation (C) Gasification (D) Hydroprocessing 28. Which of the following is a major benefit of using biomass for energy production? (A) Limited availability (B) High energy density (C) Contribution to climate change (D) Reduced reliance on fossil fuels 29. Which type of biomass is primarily used to produce ethanol in the United States? (A) Algae (B) Corn (C) Wood (D) Food waste 30. Which biomass feedstock is used in the production of biochar? (A) Algae (B) Wheat (C) Wood chips (D) Sugarcane bagasse 31. Which process involves the conversion of waste vegetable oils or animal fats into biodiesel? (A) Fermentation (B) Transesterification (C) Gasification (D) Pyrolysis 32. Which type of biomass is primarily used in the production of charcoal? (A) Agricultural residues (B) Algae (C) Forest residues (D) Urban waste 33. Which biomass feedstock is used in the production of bioplastics? (A) Sugarcane bagasse (B) Wood pellets (C) Corn starch (D) Animal waste 34. Which process involves the breakdown of organic matter into methane and carbon dioxide by microorganisms? (A) Gasification (B) Fermentation (C) Anaerobic digestion (D) Combustion 35. Which biomass conversion technology involves the direct combustion of biomass to produce electricity? (A) Gasification (B) Combustion (C) Pyrolysis (D) Fermentation 36. Which type of biomass is primarily used in the production of biogas? (A) Wood chips (B) Corn stover (C) Food waste (D) Algae 37. Which process involves the thermal decomposition of biomass in the absence of oxygen to produce a gaseous mixture? (A) Gasification (B) Combustion (C) Fermentation (D) Transesterification 38. Which biomass feedstock is primarily used in the production of biodiesel? (A) Algae (B) Corn (C) Wood chips (D) Wheat 39. Which process converts biomass into liquid biofuels through biochemical reactions involving enzymes and microorganisms? (A) Gasification (B) Fermentation (C) Combustion (D) Pyrolysis 40. Which type of biomass is primarily used in the production of bioethanol in Brazil? (A) Sugarcane (B) Corn (C) Switchgrass (D) Wood 41. Which biomass conversion process involves the transformation of solid biomass into a gaseous fuel? (A) Combustion (B) Gasification (C) Pyrolysis (D) Fermentation 42. Which biomass feedstock is primarily used in the production of biochar? (A) Wheat (B) Wood pellets (C) Sugarcane bagasse (D) Forest residues 43. Which process involves the conversion of waste cooking oils into biodiesel? (A) Fermentation (B) Gasification (C) Transesterification (D) Pyrolysis 44. Which type of biomass is primarily used in the production of charcoal? (A) Agricultural residues (B) Wood chips (C) Forest residues (D) Urban waste 45. Which biomass feedstock is used to produce bioplastics? (A) Sugarcane bagasse (B) Wood pellets (C) Corn starch (D) Animal waste 46. Which process involves the anaerobic decomposition of organic matter to produce methane-rich biogas? (A) Gasification (B) Fermentation (C) Anaerobic digestion (D) Combustion 47. Which biomass conversion technology involves the direct combustion of biomass to produce heat or electricity? (A) Gasification (B) Combustion (C) Pyrolysis (D) Fermentation 48. Which type of biomass is primarily used in the production of biogas? (A) Wood chips (B) Corn stover (C) Food waste (D) Algae 49. Which process involves the thermal decomposition of biomass in the absence of oxygen to produce a gaseous mixture? (A) Gasification (B) Combustion (C) Fermentation (D) Transesterification 50. Which biomass feedstock is primarily used in the production of biodiesel? (A) Algae (B) Corn (C) Wood chips (D) Wheat