A. lower
B. higher
C. Same as oil-free air compressor
D. unable to determine
Answer: B
Analysis: The lubricating oil from the oil-sprayed air compressor will be partially mixed into the compressed air, resulting in a high oil content in the compressed air.
Answer: Follow the manufacturer’s instructions for safe shutdown procedures to avoid damage to the compressor.
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. Adopt noise reduction design B. Increase noise C. Reduce power D. Reduce maintenance Answer: A. Designed for noise reduction
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.
Answer: The motor power typically ranges from [C] to [D] kW.