Answer: The compressor uses water instead of oil to lubricate the screw elements, eliminating the risk of oil contamination in the compressed air.
Answer: The discharge capacity ranges from [A] to [B] m³/min.
A. Cylinder head and air liner B. Piston and piston rod C. Valve assemblies and lubrication systems D. These are all answers: D. all of the above are
A. Oil injection air compressor B. Oil-free air compressor C. Both can be D. The answer cannot be determined: B Analysis: The semiconductor manufacturing industry has extremely high requirements for the purity of compressed air, so oil-free air compressors are usually chosen.
A. General Certification B. Medical certification C. Industrial certification D. No certification required answer: B. Medical certification
A. Screw B. Piston C. Centrifugal wheel D. Scroll disk answer: B. piston