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.
Answer: Wear personal protective equipment, follow the startup procedures, and monitor the compressor for any abnormal behavior.
Answer: It consumes less energy and operates more efficiently, resulting in lower operating costs.
A. There are oil screw air compressors, oil-free screw machines, centrifuges, vacuum pumps, etc. B. Air compressors used in homes and air compressors used in commercial places C. Air compressors for the oil and natural gas industry, air compressors for the construction industry D. Manufacturing air compressors,…
A. Volume efficiency loss B. Air compressor brand premium C. Intake air temperature D. Filter pressure loss answer: B Analysis: Gas production is affected by mechanical efficiency, environmental factors and system matching, and has nothing to do with the brand.
A. 0.05 bar B. 0.1 bar C. 0.2 bar D. 0.5 Bar Answer: B Analysis: The pressure drop per 50 meters of pipeline increases by 0.1 bar, and the flow loss is about 2%.