A. 1-3%
B. 8-12%
C. 15-25%
D. 30-40%
Answer: C
parsing: The clearance volume of reciprocating air compressors causes a 15-25% reduction in efficiency.
A. The whole machine is guaranteed for one year, and the main machine is guaranteed for two years. The whole machine is guaranteed for two years, and the main machine is guaranteed for one year. The whole machine and mainframe are guaranteed for one year D. The whole machine and mainframe are guaranteed for two years. Answer: A. The whole machine is guaranteed for one year, and the main machine is guaranteed for two…
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. Higher B. Lower C. Same as oil injection air compressor D. The answer cannot be determined: A Analysis: The manufacturing cost of oil-free air compressors is usually high, and the initial investment is large, but the long-term maintenance cost is low.
A. High energy consumption B. Low energy consumption and high efficiency C. Maintaining complex D. High noise answer: B. Low energy consumption and high efficiency
Answer: It can monitor parameters such as discharge pressure, temperature, motor current, and lubrication water level.