@air
2025-04-15
When can the history of air compressors go back?
- A. in 1873
- B. in 1871
- C. in 1965
- D. in 2017
Answer: A. in 1873
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@air
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What aspect of the company does ISO 50001 certification focus on?
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Question: How to properly connect the inlet and outlet water pipes of the compressor?
Answer: Follow the manufacturer’s instructions for pipe sizing, connections, and routing.
@air
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2. Which of the following does not include the core influencing factors of gas production?
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.
@air
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What are the main characteristics of silent air compressors?
A. High noise B. Low noise C. High power D. Low power answer: B. low noise
@air
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12. Which annex to ISO 1217 does the industry standard for exhaust volume correspond to?
A. Annex A B. Annex C C. Annex D D. Annex E Answer: B Analysis: The exhaust volume standard corresponds to ISO 1217 Annex C.