Answer: Perform a series of tests to check the discharge pressure, capacity, and energy efficiency, and compare the results with the manufacturer’s specifications.
A. Oil coking B. Dust accumulation C. Insufficient pressure D. Answer: A Analysis: Coking oil will block the optical path system of the laser welding machine, resulting in a single maintenance cost exceeding 500,000 yuan.
Answer: It uses water as a lubricant, achieving oil-free operation.
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. 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. Industry, energy, construction, mining B. Home use, commercial use C. Oil and gas, construction, logistics D. Manufacturing, oil and gas, construction Answer: A. Industry, energy, construction, mining