A. Pure compressed air
B. low manufacturing cost
C. simple maintenance
D. low energy consumption
Answer: A
Analysis: The main reason why the food production industry chooses oil-free air compressors is that its compressed air is pure and meets the hygiene requirements of food production.
Answer: The discharge capacity ranges from [A] to [B] m³/min.
A. 100 B. 300 C. 500 D. 800 Answer: D Analysis: Coating defects caused by oil pollution can cause annual losses of more than 8 million yuan for a single production line, highlighting the importance of oil-free air compressors.
Answer: The main features include energy efficiency, low pressure, oil-free operation, and water lubrication, providing pure compressed air suitable for industries with high air quality requirements.
Answer: The flow rate range also varies depending on the specific model, usually covering from a few cubic meters per minute to tens of cubic meters per minute.
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.