Safety engineering technology test questions and reference answers (5)

Three, short answer questions

(1) The concept of safety safety is a state of affairs that does not cause death, occupational disease, equipment and property damage, as well as environmental pollution.

(2) the concept of system safety in the life cycle of the system, the application of system safety engineering management methods, identify the sources of risk in the system and take control measures to minimize the risk, so that the system in the specified time, performance, cost range of the degree of safety

(3) the concept of Incident Tree Analysis FTA is a commonly used method of analysis of the system safety engineering is Taking an unwanted event (top event) of the system as the target of analysis, the logical relationship between hardware and software factors such as component failures, environmental influences, human errors, and program processing that may exist in the system (various bottom events) and the system failure (top event) is identified by extrapolating all the possible causes downward layer by layer and the direct causes of each layer, and represented by an inverted tree-like graphic.

(4) the basic content of the system safety engineering identification of hazardous sources: the discovery, identification of hazardous sources in the system of work hazardous sources of control: the use of engineering technology and management means to eliminate, control the sources of danger, to prevent the sources of danger lead to accidents, resulting in casualties and property damage hazardous sources of evaluation: a comprehensive evaluation of the sources of danger in the system and the risk of

(5) Determination of the general process Hazardous factors to be considered in the content of exothermic chemical reactions; heat absorption reactions; material handling and transportation; closed or indoor units; access; emissions and leakage control

(6) the main purpose of the safety interlock (interlocking) to make a number of elements of each other to ensure that the machine can not be started in the event of an unauthorized operation, or in the event of a dangerous state of automatic stopping

(7) the composition of safety monitoring system elements

(8) the meaning of the four safety colors red means prohibited, stop, fire and danger yellow means to remind people to pay attention to the blue means the instructions, requiring people to comply with the provisions of the green means to provide people with permissible, safe information

(9) common redundancy design parallel redundancy; standby redundancy; voting redundancy; K redundancy; series redundancy;

(10) Major application environments for personal protection

(11) Basic elements of an emergency plan guidelines; purpose; staffing arrangements; control centers; firefighting equipment and facilities; plant distribution maps; medical equipment and facilities; safety zone distribution; evacuation routes; communications; emergency shutdown; outsider control; security; recovery and repair; transportation; training; emergency response facilities; PPE ; data protection

(12) The main contents of self-help education

(13) The contents of the theory of accidental release of energy Accidents are an abnormal or unwanted accidental release of energy, and the prevention of accidents is the prevention of the accidental release of energy, interactions, and the prevention of human body from exposure to energy

(14) The interrelation of the two types of hazardous sources The existence of the first type of source of danger is a prerequisite for the occurrence of accidents, and the second type of source is a prerequisite for the occurrence of accidents. The existence of the first type of hazardous source is a prerequisite for the occurrence of accidents, and the emergence of the second type of hazardous source is a necessary condition for the first type of hazardous source to lead to accidents. In the process of occurrence and development of the accident, the two types of hazardous sources are interdependent and complementary, **** the same role. The energy released by the first type of hazardous source in the accident is the main body of energy that leads to personnel injury or financial damage, and determines the severity of the consequences of the accident. The difficulty of the second type of hazardous sources to determine the likelihood of accidents. The two types of hazardous sources *** with the decision of the hazardous nature of the source. The second type of hazards is around the first type of hazards randomly appear, involving people, machines, the environment and other aspects of the problem, its identification, evaluation and control should be placed on the basis of the first type of hazards identification, evaluation and control and with the first type of hazards identification, evaluation and control compared to the second type of identification, evaluation and control is more difficult

(15) the calculation of indirect losses of accidents, production stoppage, production loss (16) Specific provisions of the Criminal Law on the crime of dereliction of duty

(17) Contents of on-site safety management

(18) Occupational safety and health management system operation mode Safety and health management system operation mode occupational safety and health policy, planning, implementation and operation, inspection and corrective action, management review

(19) The main content of the safety inspection system

(20) The importance of clarifying the responsibilities of internal management bodies and members of the organization's safety and health.