Question

what are the 4 common pipe positions?
1g, 2g, 3g, 4g
1g, 2g, 5g, 6g
1g, 6g
1f, 2g, 4f, 5g

Explanation:

In welding, the four common pipe positions for welding are 1G (horizontal rolled), 2G (vertical fixed), 5G (horizontal fixed), and 6G (45 - degree inclined fixed). We check each option: the first option has 3G and 4G which are not common pipe positions in the standard four - position set. The third option has only two positions. The fourth option has non - standard designations. The second option (1G, 2G, 5G, 6G) matches the common pipe welding positions.

Answer:

B. 1G, 2G, 5G, 6G (assuming the second option is labeled as B; if the original options had different labels, adjust accordingly. Since the options are presented in a list, and the second option in the list is "1G, 2G, 5G, 6G", the answer is the option with "1G, 2G, 5G, 6G")