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Daily Security Technology Quiz (Single-choice Question) (2016.9.2)

2016-09-02View Original

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This post was last edited by 68589544 on 2016-9-5 07:42. 1. Which of the following does not meet the requirements for safe work inside equipment? ____ A. A \"Safety Work Permit for Equipment Interior\" must be obtained for work inside equipment, and the approval procedures must be strictly followed; B. Sampling and analysis must be conducted 60 minutes before entering the equipment; the concentrations of flammable gases, toxic gases, and oxygen levels must be strictly kept within safe limits. Work inside the equipment is only permitted after the analysis shows satisfactory results. If work is carried out inside the equipment for an extended period, analyses should be conducted at least every 2 hours. If levels exceed the specified limits, work must be stopped immediately and all personnel should be evacuated promptly ; C. There should be sufficient lighting; the lighting voltage inside equipment should not exceed 36V, and it should not exceed 12V when working in humid or confined spaces. Lamps and power tools must meet safety requirements such as moisture resistance and explosion prevention ; D. When the conditions for maintenance work change and there is a risk to the safety of the workers, they must be evacuated immediately ; To continue working, it is necessary to reapply for approval to work inside the equipment. 2. The hazard of toluene refers to ____. A. Flammable and toxic B. Combustion-supporting C. Irritant D. Corrosive The correct answer is B; A

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