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. 1-3% B. 8-12% C. 15-25% D. 30-40% Answer: C Analysis: The clearance volume of reciprocating air compressor causes a 15-25% efficiency decrease.
Answer: Follow the manufacturer’s instructions for draining and refilling the water tank.
A. Pressure and temperature B. Oil quantity and pressure C. Temperature and oil quantity D. The answer cannot be determined: A Analysis: The control system of an oil-free air compressor is mainly used to monitor and control the operating parameters of the compressor, such as pressure and temperature.
Answer: The discharge pressure range is typically between [X] and [Y] bar.
A. Low noise B. Efficient and stable C. Portable D. Medical certification answer: B. Efficient and stable