Accident case analysis: one question per Monday (7). +3 wealth for participation, plus an additional 1–10 wealth for correct answers

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This post was last edited by wang*nhua77020 on 2016-6-17 at 12:53. A Coking Plant is a private enterprise with 1,000 employees; in 2009, it experienced 2 production safety incidents that resulted in minor injuries to 2 people. The factory was ordered by environmental authorities to make corrections for discharging refined benzene industry wastewater after diluting it with water. The factory took the measure of spraying wastewater onto the coal piles, which not only suppressed dust formation but also prevented the discharge of wastewater. To prevent such incidents, the plant formulated and implemented the \"Management Measures for Spraying Dust Control Using Refined Benzene Wastewater at A Coking Plant\" on May 20, 2009. At around 15:20 on May 11, 2011, workers A and B, who were responsible for coal preparation at Factory A, detected a strong unpleasant odor while conducting inspections of the belt conveyor. Subsequently, the two of them went to different locations to investigate the source of the odor. At 15:38, B heard a muffled thud coming from A’s direction; a wave of air hit them, and they realized that part of the corridor had collapsed. B immediately called for help. Upon receiving the report, the plant management promptly organized a search and rescue operation at the site of the collapse of the conveyor belt corridor, and found A lying in the ruins at the northern end of the corridor. The victim had obvious injuries to the head and extensive burns on the body; medical staff confirmed that he was dead. The accident investigation confirmed that this incident was an explosion of benzene vapor in Coal Silo No. 1. One year after the benzene-containing wastewater was sprayed onto the coal piles in the coal yard, the wastewater pipeline broke, allowing the wastewater to flow into the bottom of the coal piles. Through the belt conveyor, large amounts of benzene-containing coal powder entered Silo No. 1. The low-concentration benzene vapor emitted from this coal powder accumulated and reached an explosive threshold; upon encountering a source of ignition, an explosion occurred. Based on the above scenario, answer the following questions (multiple-choice). 1A. Part-time safety management personnel can be assigned alone. B. Enterprises can entrust a registered safety engineer firm to manage their work safety. C. Enterprises can entrust evaluation agencies with safety assessment qualifications to manage their work safety on their behalf. D. A safety production management organization should be established or full-time safety production managers should be appointed. E. The enterprise may entrust individuals with the professional qualification of registered safety engineers to handle safety production matters on its behalf. 2. Plant A is recruiting new employees; the safety training time for these new employees must be no less than ( ) hours. A. 12 B. 24 C. 36 D. 48 E. 72
3. Plant A’s injury rate per million working hours in 2009 was ( ). A. 1 B. 2 C. 3 D. 4 E. 5
4. According to the regulations regarding registered safety engineers, the tasks that a registered safety engineer at Plant A can undertake include ( ). A. Participating in accident investigations organized by the plant. B. Contributing to the identification and resolution of safety hazards within the plant. C. Conducting assessments for occupational diseases among the plant’s employees. D. Participating in safety training for the plant’s employees. E. Selecting and distributing personal protective equipment for the employees.
5. The occupational hazards present in Plant A’s workplace include ( ). A. Coal dust B. Benzene C. Chlorine D. High temperatures E. Coke oven gas
1. In accordance with the provisions of the “People’s Republic of China Law on Work Safety” regarding the establishment of work safety management institutions and the allocation of safety management personnel, Plant A ( ) A. Can appoint only part-time safety management personnel. B. Enterprises can entrust a registered safety engineer firm to manage their work safety. C. Enterprises can entrust evaluation agencies with safety assessment qualifications to manage their work safety on their behalf. D. A safety production management organization should be established or full-time safety production managers should be appointed. E. The enterprise may entrust individuals with the professional qualification of registered safety engineers to handle safety production matters on its behalf. 2. Plant A is recruiting new employees; the safety training time for these new employees must be no less than (E) hours. A. 12 B. 24 C. 36 D. 48 E. 72
3. Plant A’s injury rate per million working hours in 2009 was (A). A. 1 B. 2 C. 3 D. 4 E. 5
4. According to the regulations regarding registered safety engineers, the tasks that a registered safety engineer at Plant A can undertake include (ABDE). A. Participating in accident investigations organized by the plant. B. Contributing to the identification and resolution of safety hazards within the plant. C. Conducting assessments for occupational diseases among the plant’s employees. D. Participating in safety training for the plant’s employees. E. Selecting and distributing personal protective equipment for the employees.
5. The occupational hazards present in Plant A’s workplace include (ABDE). A. Coal dust B. Benzene C. Chlorine D. High temperatures E. Coke oven gas