A. Lubricating oil and oil filter needs to be replaced regularly
B. Short equipment life
C. high energy consumption
D. Compressed air has high oil content
Answer: A
Analysis: Oil injection air compressors require regular replacement of lubricants and oil filters, which increases maintenance costs.
A. Adopt noise reduction design B. Increase noise C. Reduce power D. Reduce maintenance Answer: A. Designed for noise reduction
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…
A. 1-2% B. 3-5% C. 6-8% D. 10-15% Answer: B Analysis: High humidity reduces effective air volume by 3-5%.
A. Cylinder volume × speed × number of cylinders B. Gas production × efficiency coefficient C. Theoretical exhaust volume ÷ temperature correction coefficient D. Standard state gas production × altitude correction factor Answer: A Analysis: Discharge…
Answer: Yes, the GWL Series compressor adopts an efficient cooling system and can operate normally in high-temperature environments.