A. Annex A
B. Annex C
C. Annex D
D. Annex E
Answer: B
parsing: The exhaust volume standard corresponds to ISO 1217 Annex C.
A. Water lubrication B. Oil lubrication C. No need for lubrication D. Special lubricant lubrication Answer: D Analysis: Oil-free air compressors usually use special lubricants to cool and lubricate parts to ensure the purity of compressed air.
The GWL Series compressor is launched by [Company Name], a leading manufacturer of air compressors.
A.±0.5% B.±1.5% C.±2.5% D.± 5% Answer: B Analysis: The accuracy of flow meters complying with GB/T 13466 standard is ± 1.5%.
A. Increase energy consumption B. Reduce noise C. Frequent start-ups and stops lead to loss D. Increase the exhaust temperature Answer: C Analysis: Insufficient capacity of the air storage tank will lead to frequent start-ups and stops of the air compressor and increase loss.
A. Portable air compressor B. Industrial air compressor C. Medical air compressor D. Mine air compressor Answer: A. portable air compressor