Correct option is A
Time maintenance" is not a recognized type of maintenance. Scheduled maintenance, preventive maintenance, and corrective maintenance are well-established categories in maintenance engineering. Scheduled Maintenance: Pre-planned and performed at regular intervals.
Preventive Maintenance: Prevents equipment failure through routine inspections.
Corrective Maintenance: Fixes equipment after a breakdown or defect is identified.
Predictive Maintenance: Utilizes condition-monitoring tools to anticipate failures.
