【Daily Question】Catalytic Coking Reformate Blending Version 20171015

Thread Content

Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Multiple-choice question: A heat exchanger in which one end of the tube sheet is fixed to the shell, while the tube sheet at the other end can float freely within the shell is (　　). A. Fixed-tube plate heat exchanger B. Floating-head heat exchanger C. U-tube heat exchanger D. Packed-case heat exchanger Answer: B. Please take a moment to participate; our ultimate goal is for everyone to acquire knowledge. http://bbs.hcbbs.com/static/image/hrline/1.gif http://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be released automatically after two days. Petrochemical Zone —— “Creative Ideas for Energy Saving” Event (Second phase is in full swing) http://bbs.hcbbs.com/thread-1666758-1-1.html 2017: “My Technical Upgrades” in the Coal Chemical Industry http://bbs.hcbbs.com/thread-1786290-1-1.html [Daily Question] 2017 Summary Post on Catalyst-based Coking and Reformed Oil Blending http://bbs.hcbbs.com/thread-1811219-1-1.html