Answer: Perform a series of tests to check the discharge pressure, capacity, and energy efficiency, and compare the results with the manufacturer’s specifications.
Answer: The discharge capacity ranges from [A] to [B] m³/min.
Answer: The motor power varies depending on the compressor model and flow demand, with specifications such as 5.5kW, 7.5kW, 11kW, etc.
A. 0.5-0.6 B. 0.7-0.85 C. 0.9-1.0 D. 1.1-1.2 Answer: B Analysis: When selecting the model, it needs to be multiplied by an efficiency factor of 0.7-0.85.
A. Lubricating oil and oil filter need to be replaced regularly B. Short equipment life C. High energy consumption D. The oil content of compressed air is high. Answer: A Analysis: The oil injection air compressor requires regular replacement of lubricating oil and oil filter, which increases maintenance costs…
A. 1873 B. 1871 C. 1965 D. Answer in 2017: A. in 1873