Title 1. What are the five safety signs of automobile maintenance enterprises? What is the content of each category?

Safety signs of automobile maintenance enterprises can be divided into five categories: prohibition signs, warning signs, indication signs, prompt signs and supplementary signs.

1 Prohibition sign: indicates that people's behavior is prohibited or stopped. There are 28 prohibition signs in China, such as: no flammable materials, no smoking, no traffic, no fireworks, etc.

Warning sign: it means to warn people of possible dangers. There are 30 warning signs in China, such as: Pay attention to safety, beware of electric shock, beware of explosion, beware of fire, etc.

3 instruction mark: the meaning must be observed. There are 15 indication signs * *, such as safety helmet, protective shoes, safety belt and protective glasses.

4 prompt sign: meaning is to indicate the direction of the target. There are 13 warning signs * *, such as fire alarm bell, fire alarm telephone, underground fire hydrant, ground fire hydrant, etc.

5 Supplementary signs: it is a supplementary explanation to the above four signs to prevent misunderstanding. Supplementary signs are divided into horizontal writing and vertical writing. Horizontal writing, written under the sign, can be connected or separated from the sign; Written vertically on the upper part of the sign post.