[Daily question] [Static Equipment Exchange Edition...Question 38] Multiple choice question on December 23, 2018...Participation will win prizes

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This post was last edited by kareale88 on 2018-12-23 14:55 bg2.png [Daily question] [Static Equipment Exchange Edition...Question 38] Multiple choice question on December 23, 2018... Please fill in the answers (multiple choice, single choice, single choice) in order. Bonus rules: Participation will reward 1 wealth, and correct answers will reward 3 wealth for each item, with a maximum of 10 wealth. This topic is valid for two days and will not be graded for more than two days and 48 hours. At the beginning of this topic, friends can recommend [Weekly Topics] and participate in the following two [Weekly Topics] links. [Weekly Topic] [Static Equipment Exchange Edition...Question 1] December 8-16, 2018...Welding Deformation Discussion-Haichuan Coin Rewards https://bbs.hcbbs.com/thread-2192846-1-1.html [Weekly Topic] [Static Equipment Exchange Edition...Question 2] December 17-23, 2018... Case sharing will be richly rewarded with Haichuan coins https://bbs.hcbbs.com/thread-2221480-1-1.html 1. In order to prevent poisoning accidents, workers working on pressure vessels with toxic media should (). A. Understand the physical and chemical properties of the poisons they are exposed to. B. Strictly implement operating procedures to prevent leakage of toxic media. C. Take personal protection seriously according to different poisons and equip with necessary protective equipment and drugs. D. Each operator should be familiar with poisoning first aid measures. 2. Pressure vessels with a design temperature less than ()℃ are called cryogenic pressure vessels. A. -20 B. -10 C. 0 3. Safety valves must be installed on all pressure vessels in use to prevent overpressure accidents. () A. Correct B. Wrong answer 1. ABCD 2. A 3. B