In the automobile manufacturing industry, which of the following standards must be met for the oil content of compressed air in the spraying process?

A. Traditional models are more stable B. Environmentally friendly models are more stable C. Both have the same stability. Unable to compare the answer: B Analysis: Environmentally friendly oil-free air compressor adopts adsorption drying technology, and its dew point stability is-20℃±2℃,…

A.±0.5% B.±1.5% C.±2.5% D.± 5% Answer: B Analysis: The accuracy of flow meters complying with GB/T 13466 standard is ± 1.5%.

A. Increase energy consumption B. Reduce noise C. Frequent start-ups and stops lead to loss D. Increase the exhaust temperature Answer: C Analysis: Insufficient capacity of the air storage tank will lead to frequent start-ups and stops of the air compressor and increase loss.

Answer: It includes regular inspections, changing the lubrication water, and cleaning the air filter.

A. 15 B. 30 C. 45 D. 60 Answer: C Analysis: Through energy efficiency optimization, the 110kW model can save annual electricity bills of up to 450,000 yuan, directly reducing operating costs.