What position should the pins be set to when removing a kelly bar out of the ground?

The correct answer is to set the pins to the middle position when removing a kelly bar out of the ground. This position is important because it helps ensure that the kelly bar is properly supported and stabilized during the removal process. The middle position provides a balance, allowing for ease of extraction while minimizing the risk of the bar becoming stuck or encountering resistance from the soil.

Other positions may not offer the same level of control or stability. The outer position could make the kelly bar more prone to wobbling, which might complicate its removal. Meanwhile, the inner position could lead to excessive tension or strain on the bar, increasing the chances of bending or damage. Setting the pins to the middle position optimizes both the removal process and the integrity of the kelly bar itself.