A. Screw B. Piston C. Centrifugal wheel D. Scroll disk answer: B. piston
Answer: The GWL Series compressor can use either air-cooling or water-cooling methods, depending on the model and operating conditions.
A. A few hundred yuan to several thousand yuan B. Thousands of yuan to tens of thousands of yuan C. Tens of thousands to hundreds of thousands of yuan D. Hundreds of thousands of yuan to several million yuan Answer: A. A few hundred yuan to several thousand yuan
A. 1-3% B. 8-12% C. 15-25% D. 30-40% Answer: C Analysis: The clearance volume of reciprocating air compressor causes a 15-25% efficiency decrease.
Answer: Regular inspections of the air filter, lubrication system, and motor can help prevent premature wear and tear.