True or False: A welding cable size designation "No. 4" is larger than a "No. 2".

A size designation of welding cables such as "No. 4" and "No. 2" refers to the American Wire Gauge (AWG) system, where the numbers designate the diameter of the wire. In this system, a lower gauge number indicates a larger wire size. Therefore, "No. 2" is indeed larger and can carry more current than "No. 4". This is a fundamental principle in electrical wiring, where the size impacts the current-carrying capacity, resistance, and overall performance of the cable. For this reason, the statement that "A welding cable size designation 'No. 4' is larger than a 'No. 2'" is false, as it contradicts the established gauge standard. Understanding these size designations is essential for selecting the appropriate cables for welding applications to ensure safety and efficiency.