What are the main characteristics of portable air compressors?
- A. heavy weight
- B. light weight
- C. bulky
- D. Small size and light weight
Answer: D. Small size and light weight
What aspect of the company does ISO 50001 certification focus on? A. Quality management system B. Environmental Management System C. Energy Management System D. Occupational health and safety management system answer: C analysis: ISO…
Answer: It uses a water-cooled system to maintain optimal operating temperatures.
A. Cooling and lubricating compressor components B. Improve the purity of compressed air C. Reduce equipment noise D. Increase equipment life Answer: A Analysis: The lubricating oil system of the oil-injected air compressor injects lubricating oil into the compression chamber to start…
A. 10-20 B. 20-30 C. 30-40 D. 40-50 Answer: C Analysis: The average annual maintenance cost of environmentally friendly oil-free air compressors is 200,000 – 300,000 yuan, which is 30-40 less than traditional models…
Answer: It can be determined by observing the pressure differential indicator of the water filter or based on usage time and water quality.