According to the "People's Republic of China (PRC) Construction Law", construction enterprises and operators shall abide by the laws and regulations on safety production and the safety rules and regulations of the construction industry, and shall not command or operate illegally. 2. China's production safety policy is: safety first, prevention first. 3. The common "five major injuries" in the construction industry are: falling from a height, object strike, electric shock, mechanical injury and collapse accident. 4. Prevention of Casualty Accidents: Don't hurt yourself, don't hurt others and don't be hurt by others. 5. The production and business operation entities must abide by the Law of People's Republic of China (PRC) on Work Safety and other relevant laws and regulations on work safety, strengthen the management of work safety, establish and improve the responsibility system for work safety, improve the conditions for work safety and ensure work safety. 6. Acetylene bottles shall not be exposed to the sun, and the surface temperature of acetylene bottles shall not exceed 40℃. Warm water should be used when defrosting the heating bottle valve in winter. 7. When welding, it is forbidden to use metal pipes, metal scaffolding, tracks, structural steel bars and other metal objects to lap, and it is forbidden to use wires to lap. 8. Construction workers have the right to criticize, report and accuse acts that endanger life safety and personal health. 9. The switch box is the last stage of the distribution system, and the horizontal distance between the switch box and the controlled fixed electrical equipment shall not exceed. So as to monitor the start and stop of the equipment when the electrical appliances in the switch box are operated. When the electrical equipment fails and emergency power cut is needed, the power supply can be cut off in time. 10. The main mechanisms of the construction crane are hoisting mechanism, rotating mechanism, luffing mechanism and walking mechanism. True or false questions (2 points for each question, 20 points in total) 1. The legislative purpose of People's Republic of China (PRC) Law on Work Safety is to strengthen the supervision and management of work safety, prevent and reduce accidents in work safety, safeguard people's lives and property, and promote economic development. (T )2。 The Law of People's Republic of China (PRC) on Safety in Production stipulates that the state implements the system of investigating the responsibility of production safety accidents, and investigates the legal responsibility of those responsible for production safety accidents in accordance with this Law and relevant laws and regulations. (T )3。 China's safety production management system is "unified leadership of the government, supervision by departments according to law, overall responsibility of enterprises, and social supervision and support". Corporate responsibility, industry management, state supervision and mass supervision. 4. Employees of construction enterprises should fulfill the obligations of safety in production, which mainly include: obeying management and observing rules and disciplines; Wear and use labor protection articles correctly; Receive safety training and education, and master safety production skills; Report hidden dangers of accidents in time. (T)5。 Electrician, boiler worker, welder and other special operators. Special operators such as Signal Class II must pass the examination and obtain the operation certificate before they can take up their posts. (T )6。 When working at height, connectors or tools can be placed in boxes, tool bags, templates or scaffolding. (F )7。 In order to ensure the safe operation of overhead lines, it is necessary to keep a safe distance from one side of overhead lines and meet the safe distance below overhead lines. It is stipulated in the specification that construction shall not be carried out under high and low voltage lines, and sheds, living facilities or stacked components, shelves, materials and sundries shall not be erected under high and low voltage lines. (T )8。 When the weight limiter works, the vehicle stops moving upward, and of course it cannot descend. (T )9。 Engaged in construction activities shall abide by laws and regulations, and shall not harm public interests or the legitimate rights and interests of others. (T ) 10。 Before installing the boom, the tower crane should be equipped with a suitable counterweight. The quantity and installation position of the counterweight shall be determined according to the instruction. (t) three. Multiple choice questions (each question has at least one correct answer, no more or less points, 2 points for each question, a total of 20 points) 1. The legislative purpose of People's Republic of China (PRC) Construction Law is to strengthen the supervision and management of construction activities, maintain the order of the construction market, ensure the quality of construction projects and promote the healthy development of the construction industry. A. normal construction B. saving expenses C. quality and safety 2. Ensuring people's safety is one of the purposes of enacting the Law of People's Republic of China (PRC) on Work Safety. A. Life B. Property C. Life and property 3. "People's Republic of China (PRC) production safety law" regulation of production safety management policy is (a). A. Safety first, prevention first. B. everyone is responsible for safety in production. C. Safety In order to produce, production must be safe. 4. In case of gale above (D), the erection and dismantling of scaffolding should be stopped. A. Level 2 B. Level 4 C. Level 5 D. Level 6 5. When falling from a height, the electrical box with the falling radius of (c)m a. 3 b. 4 c. 5d. 66 for temporary electricity use on the construction site must be waterproof and dustproof. In order to prevent rain and dust from invading electrical appliances, the inlet and outlet lines of electrical box wires must be located in A, and the inlet and outlet lines should be fastened with the box body. The wire should not bear excessive tension, and the well should be expanded and bundled. The wire should not be in direct contact with the incoming and outgoing lines of the box to prevent insulation wear. A. Box bottom B. Box top C. Box side D. Box back 7. Factor (a) should be considered when selecting a crane for lifting operation. A. maximum rated load B.