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 cools and lubricates the compressor components by injecting lubricating oil into the compression chamber.
A. Stable growth B. Volatility growth C. Declining year by year D. Stagnation Answer: A. steady growth
A. Low pressure air compressor, medium pressure air compressor, high pressure air compressor B. Micro air compressor, small air compressor, medium air compressor C. Silent air compressor, portable air compressor, medical air compressor D. Piston air compressor, screw air compressor…
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
A. 1-3% B. 8-12% C. 15-25% D. 30-40% Answer: B Analysis: The gap leakage loss of the screw machine is 8-12%, and the reciprocating gap volume loss is even higher.
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.