One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； June 29th
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Multiple-choice question: Vinyl chloride is a substance with explosive hazards; preventive measures should be taken to avoid explosions caused by leaks of vinyl chloride. Among the following measures, which one is ineffective in preventing leaks and explosions of vinyl chloride? ( ) A. Leak detection systems B. Prevention of open flames C. Prevention of static electricity D. Pressure reduction measures. Correct answer: D
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Vinyl chloride is a substance with explosion hazards, and preventive measures should be taken to avoid explosions caused by leaks of vinyl chloride. Among the following measures, the one that is ineffective in preventing leaks and explosions of vinyl chloride is (D). A. Leak detection systems B. Prevention of open flames C. Prevention of static electricity D. Pressure reduction measures