A. pressure and temperature
B. Oil and pressure
C. Temperature and oil quantity
D. unable to determine
Answer: A
Analysis: The control system of oilless air compressors is mainly used to monitor and control the operating parameters of the compressor, such as pressure and temperature.
A. Improve the purity of compressed air B. Reduce equipment noise C. Cooling and lubricating parts D. Increase equipment life Answer: C Analysis: The water-lubricated design of oil-free air compressors is mainly used to cool and lubricate compressor components to ensure…
Answer: The noise level is relatively low, typically below [Z] dB(A).
A. Annex B B. Annex C C. Annex D D. Annex E Answer: C Analysis: The gas production standard corresponds to ISO 1217 Annex D.
A. 100 B. 300 C. 500 D. 800 Answer: D Analysis: Coating defects caused by oil pollution can cause annual losses of more than 8 million yuan for a single production line, highlighting the importance of oil-free air compressors.
A. Food and beverage, pharmaceuticals, cigarettes, electricity, heavy industry, chemical fiber, manufacturing, automobiles, etc. B. Household use, commercial use, agricultural production use C. Oil and gas, construction, logistics, medical D. Manufacturing, oil…