【Daily Question No. 046】2017.08.22

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【Daily Question No. 046】2017.08.22 Which of the following are safety tips for gas stations? ( ) Multiple choice A. Leaks of LNG liquid can easily lead to frostbite, fires, or explosions. B. Ensure the system is depressurized when servicing or maintaining the equipment. C. In areas with LNG and CNG, no unauthorized electrical or communication equipment such as mobile phones and radio transmitters may be used. D. All electrical equipment must meet the explosion-proof rating requirements for hazardous areas; answering the key points will earn points. Summary thread of Q&A questions for 2017 (updates starting now): http://bbs.hcbbs.com/thread-1657793-1-1.html Summary thread of daily questions for 2017 (updates starting now): http://bbs.hcbbs.com/thread-1657794-1-1.html Summary thread of Q&A questions for 2016 (already updated): http://bbs.hcbbs.com/thread-1597792-1-1.html Petrochemical sector – “Creative Ideas for Energy Saving” campaign (the second phase is in full swing): http://bbs.hcbbs.com/thread-1666758-1-1.html “My Technical Upgrades” in the field of coal chemistry for 2017: http://bbs.hcbbs.com/thread-1786290-1-1.html