A. compressed air demand
B. industry application
C. budget
D. equipment life
Answer: A
Analysis: When selecting an air compressor, the primary consideration is the compressed air demand, including purity requirements and use scenarios.
Answer: The advantages include no oil contamination, low maintenance costs, long service life, and high energy efficiency.
A. Price and brand B. Performance, price and brand C. Viscosity and quality of lubricating oil D. Production date and transportation method Answer: C. Viscosity and quality of lubricating oil
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.
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.
A. Food and beverage, pharmaceuticals, cigarettes, electricity, heavy industry, chemical fiber, manufacturing, automobiles, etc. B. Household use, commercial use, agricultural production use C. Oil and gas, construction, logistics, medical D. Manufacturing, oil…