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.
Answer: Follow the manufacturer’s instructions for safe shutdown procedures to avoid damage to the compressor.
A. Annex A B. Annex C C. Annex D D. Annex E Answer: B Analysis: The exhaust volume standard corresponds to ISO 1217 Annex C.
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. Adopt noise reduction design B. Increase noise C. Reduce power D. Reduce maintenance Answer: A. Designed for noise reduction
A. Compressed air demand B. Industry Applications C. Budget D. Equipment life answer: A analysis: When selecting an air compressor, the primary consideration is the compressed air demand, including purity requirements and use scenarios.