Professional knowledge: 1, knowledge of ray physics;

2. The basic classification and structure of X-ray flaw detector.

3. The basic theory of X-ray flaw detection;

4, the basic technology of radiographic inspection;

5. Radiation protection;

6. Standards and regulations related to radiographic inspection;

Operation skill: 1. Operate the X-ray machine independently and carry out flaw detection; (Generally, it is required to see through one or two welds)

2. Independent darkroom processing of X-ray films; (I intend to do it independently)

3. Write a simple radiographic inspection process card;

4. Evaluation of radiographic film: (Generally, it takes 10 negatives to evaluate, and there can be no definite errors. )

That's about it. The provinces are slightly different according to the actual situation, and senior personnel have added interview items.