A question-and-answer paper on mine safety and answers are presented
I. Single-choice topics (2 points each for 20 points)
1. Which of the following should mining enterprises focus on when developing contingency plans? () a. Frequency of emergency exercise b. Reserves of emergency material c. Inventory of potential accidents d. Update of contingency plans [the answer] the core of the emergency response plan is the prevention and control of accidents, so the screening of potential accidents is critical
2. What is the main purpose of the mine ventilation system? () a. Reducing mine dust concentration b. Increasing air moisture c. Increasing oxygen content d. Eliminating harmful gases the main function of the mine ventilation system is to remove harmful gases and dust from the mine and to keep the miners safe to breathe
3. Which elements of mine safety training are not covered by routine training? () a. Electrical equipment operating protocol b. Mine fire prevention c. Emergency response techniques d. Legal and regulatory knowledge [the answer] d [the resolution of] legal and regulatory knowledge is usually provided during induction training, with day-to-day training focusing mainly on operational and emergency skills
4. What are the following strictly prohibited acts in mine operations? () a. Proper wearing of a safety cap b. Use of an unqualified equipment c. Periodic inspection of ventilation d. Timely security checks b. [default] use of an unqualified equipment is a serious violation of mine safety requirements
5. When the gas explosion occurred in the mines, what was the correct self-help measure? () a. Escaped in the direction of the windbox b., waiting for rescue c. Escaped in the opposite direction of ventilation d., immediately on the lifting device, should escape in the direction of the wind to escape from the source of the explosion. Head
6. Which of the following are not required for surface security facilities in mines? () a. Emergency export sign b. Fire-fighting equipment c. Warning d. Entertainment facilities [the answer] d. [the resolution] ground safety facilities in the mines should include emergency exits, fire-fighting equipment and warning signs, etc., and recreation facilities are not security facilities
7. What circumstances, if any, do mine operations have to be discontinued? () a. Minor failure of equipment b. Mineral dust concentration exceeding standard c. Ventilation system normal d. Climate clear [the answer] b
8. Which of the following items is the focus of mine security inspections? () maintenance of staff mental state b. Equipment to record c. Ventilation at mine d. Cleanness of work area [the answer] c [deconstruction] ventilation at mine c directly relates to the safety of miners and is the focus of safety checks
9. What are the most effective ways to combat fires in mines? () a. Use of water fire extinguisher b. Use of dry powder extinguisher c. Cutting power d. Use of fire extinguisher [the answer] "b" dry powder extinguishers are most effective in fighting mine fires
10. Which of the following is the correct personal protective measure in mine operations? () a. The correct use of respiratives d. The proper placement of personal protective items [the answer] c [the resolution of] the correct use of respiratory protection items is an important measure to protect miners
Ii. Multi-choice topics (4 points each, 20 points)
1. What are the following elements of a mine security management system that must be included? () a. Security objective b. Security responsibilities c. Security measures d. Security training e. Security inspection [a answer] a, b, c, d, e. [disarmament] mine security management system should include security objectives, safety responsibilities, security measures, security training and security inspections
2. Which of the following acts in mine operations may lead to a gas explosion? () a. Electrical equipment failure b. Miners smoking c. Air circulation d. Inappropriate maintenance of open fire e. Equipment [a answer] a, b, c, d, e [discussion] electrical equipment failure, miners smoking, poor air circulation, and inadequate maintenance of open fire and equipment could lead to gas explosions
3. Which of the following measures must be taken in mine emergency response? () a. Immediate start-up of the emergency preparedness programme b. Organization of evacuation of c. Using rescue equipment d. Contacts with the outside world e. Protection of the site
4. What are the following elements of mine security inspections that focus on the target audience? () a. Security performance of equipment b. Ventilation in the working environment c. Personal protective material for miners d. Implementation of emergency response plan e. Record of safety training [the answer] a, b, c, d and e [defunct] mine security inspections focus on equipment safety performance, ventilation in the working environment, personal protective supplies for miners, implementation of emergency response plan and security training records
5. What are the following acts in mine operations that constitute security violations? () a. Dismantling of security facilities at random
Iii. Filling out of the question (4 minutes each, 20 minutes)
In mine operations, the operating protocols [the answer] must be strictly enforced to ensure the safety of operations; the security regime
In the event of a gas explosion in a mine, escape in the direction of and use for self-help [the answer] against the wind; wet towels
In mine security inspections, emphasis must be placed on equipment security; ventilation; personal protection
In mine emergency relief, immediate emergency response must be provided and [the answer] initiated; evacuation of personnel
Iv. Judicial questions (2 points each, 10 points)
1. In mine operations, miners are free to wear safety hats () [x] [x] miners are required to wear qualified safety hats
2. In the event of a fire in a mine, water () [the answer] (x) [the resolution of] mine fires should be used immediately with appropriate fire suppression equipment such as dry powder extinguishers
3. Maintenance records of equipment () [the answer] (x) [the resolution of] equipment are an important basis for security inspections in mines
4. In mine operations, miners are free to smoke () [the answer] [the resolution] that smoking is strictly prohibited in mine operations to prevent fires or gas explosions
5. In mine emergency relief, contact with the outside world is possible without contact with the outside world
V. Brief answers (5 points each, 15 points)
1. What are the main elements of a mine security management system? Key elements of [the answer] mine security management system include security objectives, security responsibilities, security measures, security training and security inspections
2. How can a gas explosion be prevented in mine operations? [answer] measures to prevent gas explosions include improved ventilation, a strict ban on pyrotechnics, use of blast-proofing equipment, regular inspection of gas concentrations, etc
3. How can a fire in a mine save itself? In case of a fire in a mine, escape immediately in the direction of the reverse wind and use wet towels to cover mouths and noses to reduce inhalation of harmful gases
Vi. Analysis questions (10 points each, 20 points)
1. Analysis of the importance of mine safety management systems [the answer] a mine safety management system is an important measure to guarantee the lives of miners and the safety of their production. It includes safety objectives, safety responsibilities, safety measures, safety training and security inspections, which effectively prevent and control accidents and reduce loss of life and property
2. The key to analysing mine emergency response procedures and measures [the answer], including the immediate start-up of emergency response plans, the organization of evacuations, the use of rescue equipment, contact with the outside world and the protection of sites, lies in rapid response and effective measures to minimize loss of life, injury and property
Vii. An analysis of the cause of the accident and an analysis of the causes of the accident [the answer] in a mine with a combined application (25 points each)
1. Fault of the ventilation system, resulting in the accumulation of gas
2. Miners fail to act properly and cause sparks
3. Inadequate maintenance of equipment and security risks
4. Inadequate contingency planning and inadequate preventive response measures
1. Strengthen ventilation system maintenance to ensure ventilation
2. Strict enforcement of operational protocols and prohibition of irregularities
3. Periodic inspection of equipment to eliminate security risks in a timely manner
4. Improving contingency planning and enhancing emergency response exercises
5. Increased safety training and awareness of the safety of miners will make it possible to effectively prevent the gas bombings and to ensure the safety of miners ' lives and the safety of their production。
