A. 0.5-0.6
B. 0.7-0.85
C. 0.9-1.0
D. 1.1-1.2
Answer: B
parsing: When selecting a model, it needs to be multiplied by an efficiency factor of 0.7-0.85.
Answer: It includes regular inspections, changing the lubrication water, and cleaning the air filter.
A. High energy consumption B. Low energy consumption and high efficiency C. Maintaining complex D. High noise answer: B. Low energy consumption and high efficiency
Answer: It is more energy-efficient and has lower operating costs due to its oil-free design and advanced compression technology.
A. 1-3% B. 8-12% C. 15-25% D. 30-40% Answer: B Analysis: The gap leakage loss of the screw machine is 8-12%, and the reciprocating gap volume loss is even higher.
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.