What do shipyard flaw detectors do? How much do they usually get paid? Are they quality inspectors? Some people say they are fat. Do you have a future? Please answer me in detail.

Flaw detection is to use various means to detect cracks in the hull that are invisible to the naked eye, such as using ultrasonic instruments to detect whether there are cracks or gaps.

There are five main testing methods: radiographic testing, ultrasonic testing, magnetic particle testing, penetrant testing, and eddy current testing.

Strong X-ray flaw detection is commonly used in shipyards and contains radiation. It might be better if you do this as someone who already has children. However, regular shipyards now have radiation-proof lead clothing and some protective measures, which can basically avoid problems.