Which of the following actions would not increase the AMA?

The answer pertains to the concept of Actual Mechanical Advantage (AMA), which is defined as the ratio of the output force exerted by a machine to the input force applied to it. To understand why increasing bending would not increase AMA, it's critical to consider the implications of bending on the mechanical performance of a machine.

When a machine part experiences bending, it may not efficiently transfer the force applied to it due to the deformation that occurs as a result. Bending typically leads to energy loss through internal stresses, which could also generate heat and reduce the overall efficiency of force transfer in the system. Therefore, relying on bending to achieve operational goals could potentially hinder the machine's effectiveness in converting input force to output force.

In contrast, the other actions mentioned—reducing friction, using stiffer members, and improving alignment—are all aimed at enhancing the efficiency and effectiveness of the force transmission within a machine. Reducing friction decreases resistance to motion, increasing the proportion of applied force that contributes to the useful work output. Using stiffer members can limit deformation under load, ensuring that more of the input force translates directly into output. Improving alignment ensures that all components are properly oriented, which minimizes losses due to misalignment, again enhancing the output efficiency.

Thus, increasing