
How long is the maintenance cycle for air compressors usually?
- A. once a month
- B. once a quarter
- C. once a year
- D. Depending on usage
Answer: D. Depending on usage
A. Water-cooled and air-cooled B. Oil cooled and air cooled C. Water cooling and oil cooling D. The answer cannot be determined: A Analysis: The cooling system of oil-injected air compressors usually includes two types: water-cooled and air-cooled, which are used to cool the compressor and compressed air…
Answer: The motor power typically ranges from [C] to [D] kW.
A. Increase exhaust temperature B. Avoid dirt that leads to reduced efficiency C. Increase noise D. Shorten equipment life Answer: B Analysis: Cleaning the cooler can prevent the accumulation of dirt and maintain efficiency.
A. 1873 B. 1871 C. 1965 D. Answer in 2017: A. in 1873
A. Improve production efficiency B. Reduce carbon emissions C. Extend equipment life D. Reduce maintenance costs Answer: B Analysis: Environmentally friendly oil-free air compressors can reduce carbon by up to 200 tons annually, realizing additional benefits through carbon trading.