LOTO is used to prevent accidental energization; a correct description is:

• A. To prevent accidental energization during maintenance
• B. To speed up production
• C. To avoid training
• D. To replace safety checks

Answer: (A)

LOTO is a safety practice to prevent accidental startup by isolating and securing all energy sources before someone works on equipment. In practice, you identify the sources of energy (electric, hydraulic, pneumatic, stored energy), shut them off, apply a lock to the energy‑isolating device, and attach a tag so others know who locked it and why. This ensures the machine cannot be energized until the lock is removed by the person who applied it, protecting workers from shocks, burns, or unexpected machine motion during maintenance. In welding environments, this is crucial when servicing weld power supplies, presses, or robot arms, where a sudden energization could be dangerous. LOTO is a required safety procedure and work plan element that relies on proper training and follow-through; it does not speed up production, nor is it meant to replace safety checks or training.