A. Spraying and sandblasting operations B. Home use of C. Commercial places use D. Agricultural production uses answer: A. Spraying and sandblasting operations
A. 50% B. 60% C. 75% D. 80% answer: C analysis: Environmentally friendly oil-free air compressors reduce oil pollution, thereby reducing the frequency of filter replacement and optimizing maintenance costs.
Answer: It is mainly used in medical, food, electronics, chemical, textile, and other industries where high air quality is required.
A. Monthly B. Quarterly C. Once a year D. The answer depends on usage: D. Depending on usage
Answer: It includes regular inspections, changing the lubrication water, and cleaning the air filter.