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.
A. General Certification B. Medical certification C. Industrial certification D. No certification required answer: B. Medical certification
A. Produce lubricating oil B. No lubricating oil C. Need to replace lubricating oil frequently D. High noise answer: B. No production of lubricating oil
A. Price and brand B. Performance, price and brand C. Market share and technological innovation D. Production date and transportation method Answer: C. Market share and technological innovation
A. Spraying and sandblasting operations B. Home use of C. Commercial places use D. Agricultural production uses answer: A. Spraying and sandblasting operations
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.