Quiz #16: Biodegradable Lubricants and Environmental Impact Team 12 Sep, 2024 Biodegradable Lubricants Quiz 1. What is the primary advantage of using biodegradable lubricants? A) Lower cost compared to synthetic oils B) Reduced environmental pollution in case of leaks C) Higher viscosity index D) Improved color stability 2. Which type of base oil is commonly used in biodegradable lubricants? A) Mineral oil B) Polyalphaolefin (PAO) C) Synthetic ester D) Petroleum-based oils 3. What is the most significant drawback of some biodegradable lubricants? A) High toxicity levels B) Limited thermal stability C) Increased operating temperatures D) Reduced load-carrying capacity 4. In what kind of applications are biodegradable lubricants most commonly used? A) High-temperature bearings B) Food-grade machinery C) Marine and forestry equipment D) Heavy-duty industrial applications 5. Which standard is commonly used to classify biodegradable lubricants? A) ISO VG classification B) ASTM D6081 C) SAE J300 D) ASTM D5864 6. What is the role of a high oxygen stability index in biodegradable lubricants? A) Prevents rust formation B) Ensures the lubricant biodegrades quickly C) Increases resistance to oxidation D) Enhances viscosity 7. Why are synthetic esters preferred in biodegradable lubricants? A) Cost-effectiveness B) Compatibility with mineral oils C) High biodegradability and excellent lubricating properties D) Lower flash points 8. What type of contamination poses the most risk to biodegradable lubricants? A) Water contamination B) Solid particle contamination C) Heat contamination D) None; biodegradable lubricants are impervious to contamination 9. What is one common application for biodegradable hydraulic oils? A) Aerospace lubrication systems B) Off-road and construction machinery C) Household sewing machines D) High-speed turbine bearings 10. Which additive is often used in biodegradable lubricants to enhance their performance? A) Zinc dialkyldithiophosphate (ZDDP) B) Calcium sulfonate C) Borate esters D) Alkylated naphthalenes Submit
