Daily Question Summary Post for the Security Technology Exchange Forum

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This post was last edited by 68589544 on 2016-5-7 at 12:03. The Security Technology Exchange forum has been running a daily question activity since April 14, 2016; those who reply with answers receive an additional 2 wealth points as a reward. 20 people will be awarded this prize. Those who answer correctly get 5 wealth points, and 39 people will be rewarded in total, up to floor 40. After reaching the 40th floor, the moderator summarizes the Daily Question activity, organizes and shares the relevant information related to the questions, and then closes the thread to prevent an overload of such Daily Question posts; this summary post is available for everyone to use as a reference. Everyone is welcome to continue participating. The list of topics is as follows: Summary post for April 2016; April 14, 2016: Three-level safety training for new employees, http://bbs.hcbbs.com/thread-1579645-1-1.html; April 15, 2016: The four principles for handling accidents, http://bbs.hcbbs.com/thread-1579708-1-1.html; April 16, 2016: The four understandings and four skills in fire protection, http://bbs.hcbbs.com/thread-1580022-1-1.html; April 17, 2016: Safety accessories for pressure vessels, http://bbs.hcbbs.com/thread-1580208-1-1.html; April 18, 2016: Functions and classifications of safety valves, http://bbs.hcbbs.com/thread-1580354-1-1.html; April 19, 2016: Safety colors, http://bbs.hcbbs.com/thread-1580601-1-1.html; April 20, 2016: The three principles of not harming oneself or others, http://bbs.hcbbs.com/thread-1580808-1-1.html; April 21, 2016: The three-point control method, http://bbs.hcbbs.com/thread-1581094-1-1.html; April 22, 2016: Basic methods of extinguishing fires, http://bbs.hcbbs.com/thread-1581290-1-1.html; April 23, 2016: Classification of work at heights, http://bbs.hcbbs.com/thread-1581501-1-1.html; April 24, 2016: Criteria for airtightness and displacement operations (this is a discussion topic; I haven’t found all the relevant information yet. Once I have it, I’ll post it here), thank you all for your participation! 2. Let’s stick with this for half a month; feel free to share your thoughts and suggestions about the event in the comments. Thank you!