Quiz #12: Transformer Oil Testing Team 28 Nov, 2024 Transformer Oil Quiz 1. What is the main purpose of using transformer oil in a power transformer? A) To cool the transformer B) To insulate the transformer C) Both A and B D) To lubricate the transformer 2. Which of the following is a sign of transformer oil degradation? A) Increased viscosity B) Darkening of the oil C) Reduced dielectric strength D) All of the above 3. What is the function of a Buchholz relay in a transformer? A) To cool the transformer B) To detect gas accumulation C) To insulate the transformer D) To lubricate the transformer 4. What is the effect of oxidation on transformer oil? A) It improves insulation B) It reduces dielectric strength C) It increases cooling efficiency D) It has no effect 5. What is a common method for removing moisture from transformer oil? A) Filtration B) Centrifugation C) Vacuum dehydration D) Sedimentation 6. What is the purpose of a transformer oil regeneration process? A) To remove contaminants B) To restore dielectric strength C) To improve cooling efficiency D) All of the above 7. What is a potential consequence of using contaminated transformer oil? A) Improved insulation B) Increased risk of transformer failure C) Reduced cooling efficiency D) Both B and C 8. What is the role of antioxidants in transformer oil? A) To increase viscosity B) To prevent oxidation C) To improve color D) To reduce cost 9. What should you do if transformer oil has a high acid number? A) Ignore it B) Replace the oil C) Regenerate the oil D) Both B and C 10. What is the significance of the flash point in transformer oil? A) It indicates the oil's viscosity B) It measures the oil's flammability C) It shows the oil's dielectric strength D) It determines the oil's cooling efficiency Submit
