Final answer:
Corrective maintenance is performed to rectify equipment failures. It includes emergency maintenance and preventive maintenance.
Step-by-step explanation:
The category of maintenance performed to rectify equipment failures is called Corrective Maintenance. Corrective maintenance is the process of fixing or repairing equipment that has malfunctioned or failed. It is typically done in response to a reported problem or failure, and the goal is to restore the equipment to its normal functioning state.
Corrective maintenance can be further divided into two subcategories: Emergency Maintenance and Preventive Maintenance.
Emergency maintenance is performed immediately to address critical failures that can cause significant downtime or safety hazards. Examples include fixing a machine that has stopped functioning or repairing a server that has crashed.
Preventive maintenance, on the other hand, involves scheduled inspections, adjustments, and repairs to prevent failures from occurring in the future. It aims to identify potential issues before they cause major problems and ensure the equipment's reliability and longevity.