A. 1-3%
B. 8-12%
C. 15-25%
D. 30-40%
Answer: C
parsing: The clearance volume of reciprocating air compressors causes a 15-25% reduction in efficiency.
Answer: “Low pressure” refers to the compressor’s ability to operate at relatively low pressure levels, making it suitable for applications that require low-pressure compressed air.
A. Low level of protection B. High level of protection C. Low power D. High noise answer: B. high protection level
Answer: It includes regular inspections, changing the lubrication water, and cleaning the air filter.
Answer: It uses water lubrication and does not produce any oil-related emissions.
A. 5-7 Year B. 7-10 Year C. 10-12 Year D. 12-15 Answer: C analysis: Environmentally friendly oil-free air compressor adopts a fully enclosed design, and the equipment life can reach 10-12 years, far exceeding traditional oily lubrication…