Questions and answers about safety knowledge
1. What is the party’s security policy? Answer: Safety first, prevention first. 2. When was the Production Safety Law passed at the 28th Session of the Ninth National People's Congress officially implemented? Answer: It will be officially implemented on November 1, 2002. 3. When was the Mine Safety Law promulgated and implemented? Answer: It was announced on November 7, 1992 and came into effect on May 1, 1993. 4. What does the accountability for production safety refer to? Answer: It means that the production and operation units, the main persons in charge of the production and operation units and other relevant responsible personnel shall bear administrative liability, civil liability and criminal liability for production safety accidents or other production safety violations that occur. 5. What is the necessity and urgency of enacting the Production Safety Law? Answer: First, the formulation of the "Work Safety Law" is in accordance with the need to strengthen supervision and management and is the need for safety supervision and management departments at all levels to administer in accordance with the law. Second, the formulation of the "Work Safety Law" is necessary to prevent and reduce accidents and protect the safety of people's lives and property. Third, the formulation of the "Work Safety Law" is the need to punish production safety violations and crimes in accordance with the law. Fourth, the formulation of the Production Safety Law is the need to establish and improve my country’s production safety legal system. 6. What are the three major procedures for coal mine production? Answer: Coal mine safety regulations, operating procedures and coal mine safety technical operating procedures. 7. What is the legislative purpose of the Mine Safety Law? Answer: Ensure the safety of mine production, prevent mining accidents, protect the personal safety of mine workers, and promote the development of the mining industry. 8. What are the four levels of the coal mine legal system? Answer: Laws, administrative regulations, local regulations, and departmental administrative regulations. 9. Which organization issued the new version of "Coal Mine Safety Regulations" and when was it implemented? Answer: The new version of the "Coal Mine Safety Regulations" was released by the State Coal Mine Safety Supervision Bureau on September 28, 2001, and came into effect on November 1, 2001. 10. What is the content of the safety inspection? Answer: Check leadership, ideas, systems, management, and hidden dangers. 11. What do the “three simultaneousnesses” of mining construction projects refer to? Answer: The safety facilities of the mine construction project must be designed, constructed, and put into production and use at the same time as the main project. 12. What are the common phenomena of ground pressure impact? Answer: When the coal (rock) body is destroyed, accompanied by vibration and sound, cracks may appear at the edge of the coal (rock) body. Dust may also fly during the vibration, and the coal (rock) may be ejected or scattered in the lane. Phenomenon. 13. What do the “three no harms” often mentioned in coal mine production refer to? Answer: Don’t hurt yourself, don’t hurt others, and don’t be hurt by others. 14. What responsibilities do district, team and team leaders have for safety work within their jurisdiction? Answer: Bear direct responsibility. 15. What rights do workers have at the workplace? Answer: Workers have the right to stop working immediately and evacuate to a safe place in work places that threaten life safety or are toxic and harmful. If the danger cannot be dealt with and personal safety cannot be guaranteed, workers have the right to refuse to work in such places. 16. What kind of system must be established in each mine for personnel entering and exiting the mine? Answer: It is necessary to establish a self-checking system for personnel entering the well and a counting system for personnel leaving the well. 17. What are the five natural disasters caused by coal mine production? Answer: It refers to water, fire, gas, coal dust, and roof accidents. 18. What is peripheral eye? Answer: It is used to collapse rocks and form the design section of the tunnel, which determines the blasthole formed in the tunnel. 19. What is the function of the cutout eye in the excavation working face? Answer: Add auxiliary free surface. 20. What should the personnel who drill and drill holes in the excavation working face pay attention to? Answer: Stay away from the eye opening, stand on the side of the drilling rig, and do not ride on the drilling rig to avoid breaking the drill and injuring people. 21. What is the content of "cleaning and cleaning" after drilling the excavation working face? Answer: "One clean" means that the drilling tools and Feng Shui pipelines have been removed from the working surface; "Three Qi" means that the withdrawn cables are hung neatly, the withdrawn Feng Shui pipelines are placed neatly on a pile of trays, and the withdrawn Drilling tools are stored neatly. 22. What are the signs of tunnel blockage and roof collapse? Answer: The main signs are: there are new cracks or fractures in the rocks, and when hit with a long tool, a dull thumping sound is made; the rocks make a crisp cracking sound; small pieces of rock fall, and broken coal appears in the coal lane. The top plate above the bracket falls down.
23. Can the local ventilator group replace the main ventilator for ventilation? Why? Answer: No. Local ventilation fan groups cannot guarantee the stability of mine air supply. 24. Under what circumstances can diffusion ventilation be used in underground chambers? Answer: If the depth of the cave does not exceed 6 meters, the width of the entrance is not less than 1.5 meters and there is no gas gushing out, the diffusion ventilation method can be used. 25. What are the "five-character" principles that miners should abide by when rescuing themselves? Answer: destroy, protect, withdraw, hide, retaliate. 26. What are the sources of fire that ignite (explode) gas in coal mines? Answer: There are natural ignition points in underground coal seams, open flames, electrical sparks, arcs or objects with hot surfaces, blasting flames, friction sparks, impact sparks, etc. 27. What are the places where gas accumulation is more likely to occur underground in coal mines? Answer: There are places where the wind flow cannot reach everywhere in the excavation working face, the upper corners of the mining working face, near the cutting part of the shearer and tunnel boring machine, the cavity where the roof has fallen, the blind alley where the wind has stopped, and the roof of the tunnel with small wind flow. at. 28. What five words can be used to express comprehensive dust prevention measures? What do they mean? Answer: Comprehensive dust prevention measures can be expressed as "wind, water, density, purity, and protection". These five words represent: wind, ventilation and dust removal; water, wet action dust removal; net, purified air and wind flow dust removal; dense, airtight dust extraction; protection, personal protection and dust prevention. 29. What should an electric locomotive driver do when he must leave the locomotive? Answer: The power supply to the motor must be cut off, the controller handle must be set to the zero position, removed and kept in a safe place, and the vehicle brake must be tightened, but the vehicle lights must not be turned off. 30. What kind of tape must be used to prevent fire underground? Answer: Flame retardant tape must be used. 31. What are the requirements for the qualifications of a belt conveyor driver? Answer: You must undergo safety technical training for this type of work, which lasts for no less than 1 month, and pass the exam to obtain a "safety qualification certificate." 32. What do the “three completes” of underground power supply refer to? Answer: That is, the protective equipment is complete, the insulation equipment is complete, and the drawings and materials are complete. 33. What must workers in workplaces where dust and poisons exceed national standards wear? Answer: You must wear dustproof or anti-virus personal protective equipment. 34. What are the signs of water leakage in an mining working face? Answer: redness, sweating, cold air, fogging, increased water spraying on the roof, pressure from the roof, water squeaking, and bottom sticking, etc. 35. Is it safe to remove running hooks? Why? Answer: It is unsafe to remove the running hook, and it is easy to fall and cause injuries. 36. What is the content of "three straights, one level, and two smooth roads" in the mining working face? Answer: "Three straights": means that the bracket, slider and coal wall in the working surface must remain straight. "Yiping" means that the slide is straight. "Two smooth roads" means that the two roads of the mining working face must be unobstructed. 37. Can gas be sensed with human sense organs? Answer: No, because gas is a colorless, odorless gas. 38. What are the principles of water exploration and release that must be adhered to in mining work? Answer: Adhere to the principle of exploring when in doubt, exploring first and then digging. 39. What is the content of “one pass and three defenses”? Answer: Ventilation, gas prevention, dust prevention and fire prevention. 40. What are the accident-prone areas at coal mining face? Answer: There are upper and lower safety exits, upper and lower ends, coal wall area, and return column top area. 41. What is gas? Answer: Gas is the general term for poisonous and harmful gases mainly composed of methane underground. Sometimes methane alone. 42. What are the main hazards of mine fires? Answer: (1) Produce a large amount of harmful gases; (2) Cause gas and dust explosions; (3) Destroy equipment and resources. 43. What are the methods to prevent natural fires? Answer: Methods to prevent natural fires include preventing grouting, spraying inhibitors, equalizing pressure ventilation and injecting inert gases. 44. When underground water penetration destroys disaster evacuation routes, in what direction should personnel retreat? Answer: Personnel must retreat toward the uphill roadway where wind currents pass. 45. What is "one gun and three inspections"? Answer: The so-called "one shot and three inspections" means that the gas concentration must be checked before charging, before blasting, and after blasting. 46. Which miner’s lamps should be strictly prohibited from being distributed? Answer: Mining lamps with leaking batteries, insufficient brightness, damaged wires, defective lamp locks, loose lamp head seals, loose lamp head rings, or broken glass are strictly prohibited from being distributed. 47. What are the “three insurances” for blasting? Answer: Stand guard, set up warning signs, and blow the whistle.
48. What does the "two equals" of underground coal mine power supply refer to? Answer: That is, the cables are hung neatly and the equipment compartment is clean and tidy. 49. How to provide first aid to an electrocuted person at the scene? Answer: ⑴ cut off the power supply immediately; ⑵ perform artificial respiration; ⑶ perform external heart compression; ⑷ use cardiotonic medicine; ⑸ treat the wound; ⑹ For local electric shock wounds, the wound should be exposed, not bandaged, and injected with tetanus antitoxin. 50. What types of self-rescuers are there? Answer: There are two types of filter-type self-rescuers and isolation-type self-rescuers. Isolation-type self-rescuers are further divided into chemical oxygen self-rescuers and compressed oxygen self-rescuers. 51. Can I engage in fire work while wearing a filter-type self-rescuer? Why? Answer: No. Because the self-rescuer has a simple structure, limited functions, and low safety. 52. What should we do if a fire breaks out suddenly and is so fierce that the on-site personnel cannot extinguish it? Answer: You should first report to the dispatch room and request assistance from the rescue team, and then carry out self-rescue and disaster avoidance and evacuate the dangerous area. 53. What do the “three noes” of underground coal mine power supply refer to? Answer: There are no chicken feet, no sheep tails, and no obvious joints. 54. What do the “four things” of underground coal mine power supply refer to? Answer: There are overcurrent and leakage protection devices, screws and spring washers, sealing rings and baffles, and grounding devices. 55. What is the basic purpose of mine ventilation? Answer: ⑴ Provide enough fresh air for underground personnel; ⑵ Dilute harmful gases and dust below safe concentrations and discharge them to the surface; ⑶ Ensure appropriate climate conditions underground to facilitate workers' labor and machine operation; ⑷ Improve mine disaster resistance ability. 56. Who are the three people in the "Three-person Chain" bombardment? Answer: Demolition workers, team leaders, gas inspectors.