@air
2025-04-15

What should I pay attention to when buying used air compressors?

  • A. price and brand
  • B. Performance, price and brand
  • C. appearance and color
  • D. Date of production and method of transportation
    Answer: B. Performance, price and brand
Welcome!

Related Articles:
@air
2025-04-15

What are the main differences between oil-injected air compressors and oilless air compressors?

A. Compression method B. Cooling method C. Lubricating method D. Control method answer: C analysis: oil-injected air compressors use lubricating oil to cool and lubricate compressor components, while oil-free air compressors do not use lubricating oil. These are two…

@air
2025-04-15

In automobile manufacturing, what is the main purpose of using oil-free air compressors in precision assembly?

A. Increase assembly speed B. Extend tool life C. Reduce noise levels D. Reduce energy consumption Answer: B Analysis: Oil-free technology prevents oil mist from polluting high-precision pneumatic tools, thereby extending tool life to 1…

@air
2025-04-15

12. Which annex to ISO 1217 does the industry standard for exhaust volume correspond to?

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.

@air
2025-04-15

What parameters are mainly monitored by the control system of an oilless air compressor?

A. Pressure and temperature B. Oil quantity and pressure C. Temperature and oil quantity D. The answer cannot be determined: A Analysis: The control system of an oil-free air compressor is mainly used to monitor and control the operating parameters of the compressor, such as pressure and temperature.

@air
2025-04-15

What is the oil content of compressed air in oil-injected air compressors usually?

A. Lower B. Higher C. Same as oilless air compressor D. The answer cannot be determined: B Analysis: The lubricating oil from the oil-injected air compressor will be partially mixed into the compressed air, resulting in a high oil content in the compressed air.