【Daily Question】Catalytic Coking Reformate Blending Version (Multiple Choice) 20171026
Thread Content
This post was last edited by Green Lotus on 2017-10-26 09:28. Participants: Reward of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Single-choice question: The switch commonly used for controlling the on-site lighting circuits in chemical production plants is ( ). A. Pull-cord switch B. Circuit breaker C. Plastic box switch D. Explosion-proof switch. Answer: D. Take a moment to participate – our ultimate goal is for everyone to gain 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. 【Q&A】Summary Post for 2017: Catalytic Coking and Reforming Oil Blending Version http://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary Post for 2017: Catalytic Coking and Reforming Oil Blending Version http://bbs.hcbbs.com/thread-1811219-1-1.html
The switch commonly used for controlling the on-site lighting circuits in chemical production plants is ( D ). A、Pull-cord switch B、Air switch C、Rubber box switch D、Explosion-proof switch
The switch commonly used for controlling the on-site lighting circuits in chemical production plants is ( D ). A、Pull-cord switch B、Air switch C、Rubber box switch D、Explosion-proof switch