What is the total duration in hours of the first period in the Welder Training Profile?

The correct answer is 240 hours for the total duration of the first period in the Welder Training Profile. This figure reflects the structured educational requirements mandated for welders during their initial training phase, which typically comprises a combination of hands-on practice and theoretical instruction.

The duration is designed to provide trainees with a comprehensive understanding of fundamental welding principles, safety practices, and essential techniques. This foundational period is crucial, as it establishes the necessary skills and knowledge for more advanced topics and practical applications in welding.

In comparison, the other options reflect durations that might be associated with different phases of training or specializations within the welding curriculum but do not align with the standard requirements for the first period in the Welder Training Profile. Thus, recognizing the significance of the 240 hours helps trainees appreciate the commitment involved in their education and the importance of mastering fundamental welding skills before progressing further in their training.