Final answer:
The welder identification card issued by the CWB includes the validity period of the qualification, which is critical for ensuring the welder's certification is up-to-date. It does not contain subjective details like welding preferences or personal information such as the date of birth.
Step-by-step explanation:
The welder identification card issued by the Canadian Welding Bureau (CWB) to welders who are considered qualified includes several important pieces of information that validate the credentials and competencies of the welder. One crucial piece of information included on this card is the validity period of the qualification. This period indicates how long the certification is valid before the welder must requalify to maintain their certification status.
The card does not include subjective preferences such as the welder's favorite welding technique or types of electrodes the welder prefers, nor does it include personal information like the welder's date of birth. Instead, it focuses on professional qualifications relevant to the welding industry and safety practices.
As outlined in the given references, a welder's gloves and helmet are essential for protection from the electric arc. This relates to safety practice and certifications that would be illustrated on a CWB welder identification card, ensuring the welder is adequately trained to handle such hazardous conditions and equipment.