Explain how to examine the welds after the tests and how to check for defects as the degree of penetration and fusion inclusions porosity cracks?

After conducting weld tests, examine the welds visually and through non-destructive testing (NDT) methods such as ultrasonic testing or radiographic inspection. Look for defects like inadequate penetration, which appears as a lack of fusion at the weld toe, and fusion inclusions, which may manifest as small voids within the weld metal. Additionally, check for porosity, identified by small holes on the weld surface, and cracks, which can be seen as linear defects. Ensure that the weld meets specified standards for quality and integrity by documenting and addressing any identified issues.