A. lower cost
B. simple maintenance
C. Pure compressed air
D. wide application range
Answer: C
Analysis: The advantages of oil injection air compressor include low cost, simple maintenance and wide application range, but the compressed air oil content is high, not its advantages.
A. Nitrogen purge loss B. Brand premium cost C. Advertising intensity D. Equipment appearance aesthetics Answer: A Analysis: High-end industries need to consider nitrogen purging and monitoring sampling losses.
Answer: Water lubricates the screw elements, cools the compressor, and helps to maintain optimal operating conditions.
Answer: Regular inspections of the air filter, lubrication system, and motor can help prevent premature wear and tear.
A. Cylinder head and air liner B. Piston and piston rod C. Valve assemblies and lubrication systems D. These are all answers: D. all of the above are
Answer: Follow the manufacturer’s instructions for pipe sizing, connections, and routing.