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This post was last edited by liuquan1100 on 2017-9-6 08:34. [Daily Question No. 061] 2017.09.06 Static electricity discharge can occur when people wear clothes made of synthetic materials, comb their hair, walk on dry surfaces, or do other activities. ( ) (Judgment) The reference answers will be visible after responding; points can be earned by identifying the key points. The answers to the daily activity questions have changed; today’s answers will be shown in subsequent questions. For management purposes, if you need to view content from a few days ago, please access it through the summary post below. Summary post of Q&A questions for 2017 (updates have begun): http://bbs.hcbbs.com/thread-1657793-1-1.html Summary post of daily questions for 2017 (updates have begun): http://bbs.hcbbs.com/thread-1657794-1-1.html Summary post of Q&A questions for 2016 (updates completed): http://bbs.hcbbs.com/thread-1597792-1-1.html The Petrochemical Area – “Creative Ideas for Energy Saving” campaign (the second phase is in full swing): http://bbs.hcbbs.com/thread-1666758-1-1.html (Source: Haichuan Chemical Industry Forum) [Daily Question No. 056] As of September 1, 2017, what should be the safe distance between oxygen cylinders, acetylene, and open flames? ( ) meters. (A)≥2 (B)≥5 (C)≥10 (D)≥20 C【Daily Question No. 057】 September 2, 2017 When using a dry powder or gas fire extinguisher, one should stand ( ). (A) Upwind side (B) Downwind side (C) Left side (D) Right side A【Daily Question No. 058】 September 3, 2017 1. The safety accessories of pressure vessels include ( ). (A) Pressure gauges, safety valves, level gauges, etc. (B) Thermometers, pressure gauges, safety valves, etc. (C) Pressure gauges, flow meters, thermometers, etc. (D) Thermometers, pressure gauges, valves, etc. A【Daily Question No. 059】 September 4, 2017 1. Circuit switches must be installed on ( ). (A) Neutral wire (B) Neutral wire or live wire (C) Live wire (D) Ground wire C【Daily Question No. 060】 September 5, 2017 1. The fire extinguishing method that reduces the temperature of combustible materials and eliminates the conditions for combustion is ( ). (A) Cooling method (B) Isolation method (C) Asphyxiation method (D) Water pouring method A