Case 1:

A vegetable oil processing plant adopts oil leaching process and adopts advanced chemical extraction method to extract soybean oil. Production tools include machinery and equipment, transport vehicles in the factory, etc. The flash point of the produced vegetable oil is greater than 60℃. The vegetable oil extraction workshop is a single-storey workshop with a building area of 125 m2 and no more than 10 staff. In order to do a good job of hazard identification, the factory safety supervisor A gave a safety training to the employees of the whole factory, and described the theory of hazard, accident hidden danger and accident cause. A pointed out that because vegetable oil and its processing raw materials have the danger of fire and explosion, there are a lot of hazards and hidden dangers in our factory, even major hazards and hidden dangers. For example, in the process of vegetable oil leaching, the temporary storage tank of vegetable oil has a large amount of oil, which constitutes a major hazard source; There are operators in the vegetable oil extraction workshop, and the operators may make mistakes, so the vegetable oil extraction workshop is a major accident hidden danger. A further explained that the degree of danger can be expressed by the degree of danger. Danger degree is a function of the possibility and severity of accidents in production system, that is to say, the greater the possibility or severity of accidents in production system, the greater the danger degree of production system. Therefore, in the production process, we should try our best to reduce the possibility and severity of accidents, reduce the possibility of accidents by reducing people's unsafe behavior, and reduce the severity of accidents by reducing the unsafe state of things. For example, reducing the raw material storage of vegetable oil processing raw materials (soybeans) storage area can reduce the severity of accidents in storage areas. For another example, the less vegetable oil stored in the refined oil storage tank of vegetable oil, the less serious the accident. Therefore, in order to reduce the risk of the product oil storage area, the large oil storage tank should be transformed into several small oil storage tanks, that is, when it is necessary to store 5 000t of finished vegetable oil, 10500t oil storage tanks should be used instead of five 65438+ oil storage tanks. Please answer the following questions according to the above situation.

Multiple choice question:

The flash point of vegetable oil produced by 1. is greater than 60℃, and the vegetable oil leaching workshop is a single-storey factory building with a construction area of 125m2, and the number of workers does not exceed 10. The safety exit of the leaching workshop should be at least (b).

A. 1 B .2 C .3 D.3 or above.

2. The following statement about the relationship between hazards and hidden dangers of accidents is correct (A).

A. hidden dangers of accidents must be hazards.

B. the hazard source must be an accident hidden danger.

C. major hazards must be hidden dangers of accidents.

D. major accidents must be major hazards.

Multiple choice question:

1. Some opinions of the factory safety supervisor A are wrong. The following statement is wrong (a, b, d).

A. Because vegetable oil and its processing raw materials are in danger of fire and explosion, there are a lot of hazards and hidden dangers in our factory, even major hazards and hidden dangers of major accidents.

B. There are operators in the vegetable oil extraction workshop, and the operators may make mistakes, so the vegetable oil extraction workshop is a major accident hidden danger.

C the degree of danger can be expressed by the degree of danger, which is a function of the possibility and severity of accidents in the production system.

D when it is necessary to store 5,000 tons of finished vegetable oil, the risk of using 10500 tons storage tank is less than that of using 5 1000 tons storage tanks.

2. According to the explanation of the relationship between the degree of danger and the possibility and severity of the accident by the factory safety supervisor A, the following statement is correct (b, c).

A. When the possibility of system accident is certain, the severity of the accident will increase by l times, and the accident risk of the system will increase by 1 times.

B the risk of system accidents increases with the increase of the possibility and severity of accidents.

The risk of accidents in system C increases with the increase of the possibility of accidents.

D the risk of system accidents decreases with the increase of the possibility and severity of accidents.

3.？ The less vegetable oil is stored in the refined oil storage tank, the less serious the accident is. Therefore, under the condition of constant storage tank volume, the less vegetable oil in the tank, the lower the accident risk of the tank. ? This statement is incorrect. The reason is (b, d).

A The less vegetable oil in the fuel tank, the more serious the accident.

B. When the vegetable oil in the tank is less than a certain degree, the gaseous substances evaporated from the vegetable oil occupy a large space, and the accident risk of these gaseous substances is much higher than that of the vegetable oil. In this case, the accident risk of the storage tank may not be small.

C The less vegetable oil in the fuel tank, the greater the possibility of an accident.

D. The risk of storage tank accidents is not only related to the amount of vegetable oil, but also related to many other factors, so it is not comprehensive to judge the risk of storage tank accidents only by the amount of vegetable oil stored.

Related knowledge:

1. technical points of setting fire safety evacuation passages and exits in crowded places

Requirements for setting up safety exits

(1) There should be no less than two safety exits in each fire zone, and they should be set in a scattered way.

(2) There should be no threshold or steps at the exit, and rolling doors, revolving doors, hanging doors and sliding doors should be adopted.

(3) During business and use hours, the safety exits shall not be locked, blocked or piled up.

(4) The width of entrance doors and emergency exits of public places and concept pavilions should not be less than1.4m.

2. Accidents, hidden dangers, dangers, hazards and major hazards

Case 2:

A factory conducts safety education for employees, and the director A, who is in charge of safety production, explains the safety management policy, the principles and principles of safety production management, the theory of accident causes, the principles and basic principles of accident prevention, etc. A, the so-called system is an organic whole composed of several interacting and interdependent parts. Furthermore, what is the theory of accidental release of energy? People can only be injured because of some kind of energy transfer? The harm caused by energy countercurrent to human body can be divided into two types: the first type of injury is caused by the application of energy exceeding the threshold of local or systemic injury; The second kind of injury is caused by affecting local or systemic energy exchange. Under certain conditions, whether a certain form of energy can cause casualties and the severity of the injury depends on the size of energy, the degree of energy concentration, the human body parts exposed to energy, the length and frequency of contact with energy and the types of energy. According to the above situation, answer the following questions.

Multiple choice question:

The following statement is correct (b).

A. China's safety production management policy is: Safety first, prevention first, people first. ?

B. China's safety production management, adhere to? Safety first, prevention first? Policy. So-called? Safety first? That is, in production and business activities, we should always put safety in the first place and give priority to ensuring the personal safety of employees and other personnel.

C. The so-called prevention first? , is to prevent the expansion of the accident, try to reduce the losses caused by the accident.

D. People-oriented? , is to carry out production activities according to the individual's will to ensure the safety of the production process.

Multiple choice question:

1. According to A's explanation of the system, the following statement is correct (A, C).

A. The whole factory is a system.

B. A team in a factory cannot be a system.

C. The production process of the whole factory constitutes a system.

D. part of the production process of the whole plant cannot form a system.

2. According to the theory of accidental release of energy, the following statement is correct (b, c).

A. poisoning belongs to the first kind of injury.

B. Poisoning belongs to the second kind of injury.

C other things being equal, the longer the energy acts on human body, the more serious the harm to human body.

D Other things being equal, the shorter the time that energy acts on human body, the more serious the harm to human body.

Related knowledge:

1. The Law on Work Safety will? Safety first, (prevention first? It is stipulated as the basic policy of safe production in China. So-called? Safety first? That is, in production and business activities, in dealing with the relationship between ensuring safety and achieving other objectives of production and business activities, we should always put safety, especially the personal safety of employees and other personnel, in the first place and carry it out? Safety first? The principle of. So-called? Prevention first? , is the management of production safety, mainly to take control measures before the accident, nip in the bud, put the accident in the bud.

2. System refers to an organic whole composed of several interrelated elements with independent functions in order to achieve certain goals. For the production system, the system consists of six elements: personnel, materials, equipment, funds, task indicators and information.

3. The so-called people-oriented, its basic meaning is simply: it is an affirmation of people's main role and position in social and historical development, emphasizing people's main role and goal position in social and historical development; It is a value orientation, which emphasizes respecting, liberating, relying on and serving people. It is a way of thinking, that is, when analyzing and solving all problems, we should adhere to both the historical scale and the humanistic scale.

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