Soft foot can lead to which issues if not corrected?

• A. Misalignment and vibration
• B. Improved efficiency
• C. Reduced heat generation
• D. Increased torque

Answer: (A)

Soft foot happens when one or more feet of a machine don’t sit evenly on the base, causing the frame to tilt. That tilt shifts the relative positions of shafts, couplings, and bearings, so during operation the actual alignment is off. The primary result is misalignment that shows up as vibration and uneven bearing loading, which accelerates wear, stresses seals and gears, and can shorten equipment life. If soft foot isn’t corrected, these problems will persist and typically get worse. It wouldn’t improve efficiency, and it wouldn’t reduce heat generation or increase torque; in practice, you’d expect the opposite—more energy loss, more heat from friction, and potential torque-loading issues due to the misalignment.