【Daily Question】Sulfur Technical Version 20180310
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To increase the popularity of this section, a daily quiz activity has been launched. The purpose of this activity is: “Learn a little bit every day, and make significant progress over ten days.” I hope everyone will participate actively; by learning and making progress, they can also easily bring wealth home :) . Participation: Prize of 5 Wealth ； Correct answer: Reward of 10 wealth points ； Note: For questions from that day, answering correctly earns 10 wealth points; answering the next day earns 5–8 wealth points. This post is valid for 48 hours. https://bbs.hcbbs.com/static/image/hrline/4.gif True or False: Personnel working in areas containing hydrogen sulfide should carry hydrogen sulfide detectors or combustible gas detection alarms to monitor the gas levels in the working environment; the oxygen concentration must be at least 19.5%, and positive pressure ventilation should be maintained.
Personnel working in areas containing hydrogen sulfide should carry hydrogen sulfide detectors or combustible gas detection alarms to monitor the gases in the working environment; the oxygen level must be at least 19.5%, and positive pressure ventilation should be maintained. (V)
Wrong, it should be no less than 20%
True or False: Personnel working in areas containing hydrogen sulfide should carry hydrogen sulfide detectors or combustible gas detection alarms to monitor the gases in the working environment; the oxygen level must be at least 19.5%, and positive pressure ventilation should be maintained