To prevent the amplification of internal stresses and absorb vibration, which devices are installed?

The correct choice is vibration isolators, as they are specifically designed to mitigate the effects of vibration by separating vibrating machinery or equipment from their supporting structures. When equipment operates, it generates vibrations that can be transmitted through the supporting structure, leading to potential damage or discomfort. Vibration isolators work by employing various materials and designs that absorb and dissipate the energy from vibrations, effectively preventing the amplification of internal stresses in both the equipment and the surrounding structures.

Self-leveling mounts are primarily used to ensure that machinery maintains a level position, which is important for operation but does not specifically address the absorption of vibration. Adjustable foundations and adjustable mounts provide flexibility in positioning,

but their primary function is not to isolate or absorb vibrations. Instead, they focus on allowing for adjustments in height and alignment, which may indirectly benefit the performance of machinery but do not specifically target the reduction of vibration and internal stress amplification.