What is the process called that involves removing the source of power and installing a lock to prevent it from being turned on?

The correct answer is associated with a safety procedure crucial for ensuring the safety of workers when servicing or maintaining equipment. This process is known as "Lockout." Lockout involves removing the source of power from a system, such as electricity, and then applying a lock to the power source or its control mechanism to prevent the equipment from being inadvertently energized during maintenance.

This procedure is critical in industrial settings where heavy machinery or electrical equipment is involved, as it protects workers from accidental start-up or release of stored energy that could cause injury. Lockout is part of a broader safety program typically referred to as Lockout/Tagout (LOTO), which focuses on safeguarding employees during maintenance work.

The other options do not accurately describe this specific safety practice. Safe mode refers to a state in which a computer runs with minimal functions to troubleshoot issues. Disabling generally refers to turning off or deactivating a function but does not involve locking out controls or ensuring safety while working on equipment. Isolation may involve separating a part of a system but does not necessarily include the critical locking mechanism that prevents the reactivation of equipment during maintenance.