Dog legs can be avoided when making offset bends by__________.

Maintaining the center line for all bends is crucial in avoiding dog legs in offset bends. When the center line is consistently followed, it ensures that the bends align properly, maintaining straightness and direction in the conduit run. This practice minimizes any angular misalignment that could result in unexpected changes in direction, commonly referred to as "dog legs."

In contrast, making all bends at a right angle does not necessarily guarantee a straight run, as the alignment might still not follow the center line properly. Ensuring that bends are a specific distance apart, like 6 inches, may also lead to offset issues unless those distances are accurately placed relative to the center line. Rebending for accuracy might help correct mistakes but doesn't inherently prevent dog legs if the initial bends are not aligned properly. Thus, the emphasis on maintaining the center line aids in precise and accurate conduit installations, avoiding unwanted angular misalignments.