Answer: The compressor uses water instead of oil to lubricate the screw elements, eliminating the risk of oil contamination in the compressed air.
A. Convert the gas production at different temperatures to standard state B. Calculate the theoretical air compressor displacement C. Evaluate brand market share D. Predicting equipment failure rate Answer: A Analysis: Temperature correction factor is used to unify different temperatures…
A. Wear of cylinder head and air liner B. Piston and piston rod damage C. Valve assembly failure D. These are all answers: D. all of the above are
A. General B. Poor C. Better D. Very good answer: D. very good
A. 1873 B. 1871 C. 1965 D. Answer in 2017: A. in 1873
What is the usual manufacturing cost of oil-injected air compressors? A. Higher B. Lower C. Same as oilless air compressor D. The answer cannot be determined: B Analysis: The manufacturing cost of oil-injected air compressors is usually low, and the initial investment is small, so it is suitable for…