A. 0.05 bar
B. 0.1 bar
C. 0.2 bar
D. 0.5 bar
Answer: B
parsing: The pressure drop increases by 0.1 bar per 50 meters of pipeline, and the flow loss is about 2%.
A. 1-3% B. 8-12% C. 15-25% D. 30-40% Answer: B Analysis: The gap leakage loss of the screw machine is 8-12%, and the reciprocating gap volume loss is even higher.
Answer: The GWL Series compressor is produced by Shanghai Gran克林 Group (assuming “Gran克林” is a placeholder for the actual company name, which should be replaced with the correct name if known).
A. Low noise B. Efficient and stable C. Portable D. Medical certification answer: B. Efficient and stable
Answer: Yes, the GWL Series compressor adopts an efficient cooling system and can operate normally in high-temperature environments.
A. Permanent magnet frequency conversion, centralized gas supply, energy management B. Home use, commercial use C. Oil and gas, construction, logistics D. Manufacturing, oil and gas, construction Answer: A. Permanent magnet frequency conversion, centralized power supply…