A. oil injection air compressor
B. oil free compressor
C. both can
D. unable to determine
Answer: A
Analysis: Oil injection air compressors have low initial investment and are suitable for companies with limited budgets.
A. Stable growth B. Volatility growth C. Declining year by year D. Stagnation Answer: A. steady growth
A. Compressed air pure B. Low manufacturing cost C. Simple maintenance D. Low energy consumption Answer: A Analysis: The main reason why the food production industry chooses oil-free air compressors is that its compressed air is pure and meets the hygiene requirements of food production…
A. Price and brand B. Performance, price and brand C. Viscosity and quality of lubricating oil D. Production date and transportation method Answer: C. Viscosity and quality of lubricating oil
A. Compressed air pure B. Low manufacturing cost C. Maintaining complex D. High energy consumption answer: A analysis: The main advantage of oil-free air compressors is that their compressed air is pure and oil-free, which is suitable for high purity requirements of compressed air…
Answer: Follow the manufacturer’s instructions for draining and refilling the water tank.