What are the compression elements of piston air compressors?
- A. screw
- B. piston
- C. centrifugal wheel
- D. scroll
- Answer: B. piston
A. Lower cost B. Simple maintenance C. Compressed air pure D. Wide application range Answer: C analysis: The advantages of oil-injected air compressors include low cost, simple maintenance and wide application range, but the compressed air has a high oil content…
A. Price and brand B. Performance, price and brand C. Viscosity and quality of lubricating oil D. Production date and transportation method Answer: C. Viscosity and quality of lubricating oil
A. 0.05 bar B. 0.1 bar C. 0.2 bar D. 0.5 Bar Answer: B Analysis: The pressure drop per 50 meters of pipeline increases by 0.1 bar, and the flow loss is about 2%.
Answer: It can handle corrosive gases and provide reliable performance in harsh environments.
A. Portable air compressor B. Industrial air compressor C. Medical air compressor D. Mine air compressor Answer: A. portable air compressor