A. compression method
B. cooling method
C. lubrication method
D. control mode
Answer: C
Analysis: Oil injection air compressors use lubricating oil to cool and lubricate compressor components, while oilless air compressors do not use lubricating oil. This is the most essential difference between the two.
Answer: “Low pressure” refers to the compressor’s ability to operate at relatively low pressure levels, making it suitable for applications that require low-pressure compressed air.
A. Oil injection air compressor B. Oil-free air compressor C. Both can be D. The answer cannot be determined: A Analysis: Oil injection air compressors have low initial investment and are suitable for companies with limited budgets.
A. Volume efficiency loss B. Air compressor brand premium C. Intake air temperature D. Filter pressure loss answer: B Analysis: Gas production is affected by mechanical efficiency, environmental factors and system matching, and has nothing to do with the brand.
A. B. major cities in the world Home use, commercial use C. Oil and gas, construction, logistics D. Manufacturing, oil and gas, construction Answer: A. major cities around the world
Answer: It can handle corrosive gases and provide reliable performance in harsh environments.