【Daily Question No. 008】2017.07.15

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【Daily Question No. 008】July 15, 2017: Which of the following is not a major source of liquid and solid impurities in natural gas transmission systems? A. Condensate oil, condensate water, and rock dust brought down from the well during gas production; B. Solder slag remaining from pipeline construction; C. Nitrogen and sulfides in natural gas; D. Refractory substances that remain after the pipelines have not been dried properly. Refer to the answer key – scoring is based on identifying the key points. C 2017 Q&A Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html Petrochemical Sector – “Creative Ideas for Energy Savings” Campaign (Phase 2 is in full swing) http://bbs.hcbbs.com/thread-1666758-1-1.html 2017 Coal Chemicals – “My Technical Upgrades” http://bbs.hcbbs.com/thread-1786290-1-1.html