A. compression method
B. cooling method
C. lubrication method
D. control mode
Answer: C
Analysis: Oil injection air compressors use lubricating oil to cool and lubricate compressor components, while oilless air compressors do not use lubricating oil. This is the most essential difference between the two.
Answer: Check for loose parts, worn components, or improper lubrication, and repair as necessary.
A. Annex B B. Annex C C. Annex D D. Annex E Answer: C Analysis: The gas production standard corresponds to ISO 1217 Annex D.
Answer: Wear personal protective equipment, follow the startup procedures, and monitor the compressor for any abnormal behavior.
Answer: The GWL Series compressor adopts a low-noise design, with a noise level typically below industry standards, depending on the model and operating conditions.
A. Backwardness of energy-saving technology B. Advanced energy-saving technology C. Don’t pay attention to energy-saving technologies D. General answer to energy-saving technology: B. Advanced energy-saving technology