What is the usual manufacturing cost of oil-injected air compressors?
A. higher
B. lower
C. Same as oil-free air compressor
D. unable to determine
Answer: B
Analysis: The manufacturing cost of oil-injected air compressors is usually low and the initial investment is small, making it suitable for companies with limited budgets.
A. Increase exhaust temperature B. Avoid dirt that leads to reduced efficiency C. Increase noise D. Shorten equipment life Answer: B Analysis: Cleaning the cooler can prevent the accumulation of dirt and maintain efficiency.
A. An altitude of 1500 meters causes intake pressure loss B. After-treatment equipment pressure loss 6% C. The capacity of the air storage tank is too large D. The ambient temperature is too high Answer: C Analysis: Insufficient capacity of the gas storage tank is a problem. Too large will not affect the gas production…
A. 5% B. 11% C. 20% D. 30% answer: B Analysis: For every 1000 meters increase in altitude, the air density drops by about 11%.
The GWL Series compressor is launched by [Company Name], a leading manufacturer of air compressors.
A. A few hundred yuan to several thousand yuan B. Thousands of yuan to tens of thousands of yuan C. Tens of thousands to hundreds of thousands of yuan D. Hundreds of thousands of yuan to several million yuan Answer: B. Thousands to tens of thousands of yuan