A. higher
B. lower
C. Same as injection air compressor
D. unable to determine
Answer: A
Analysis: Oil-free air compressors are usually costly to manufacture, with large initial investment, but low long-term maintenance costs.
Answer: It must meet strict standards for purity and reliability to ensure the quality of pharmaceutical products.
A. Compressed air demand B. Industry Applications 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.
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
A. Inspect reinforced gas piping B. Replace the leaking valve C. Check or replace air valve D. These are all answers: D. all of the above are
A. 50% B. 60% C. 75% D. 80% answer: C analysis: Environmentally friendly oil-free air compressors reduce oil pollution, thereby reducing the frequency of filter replacement and optimizing maintenance costs.