Which is NOT a type of maintenance?

Which is NOT a type of maintenance?

• A. Flexible
• B. Emergent
• C. Corrective
• D. Preventative

Answer: (A)

Maintenance actions are classified by why and when they are done: corrective maintenance fixes problems after they occur, preventive maintenance is performed on a schedule to reduce the chance of failure, and emergent (urgent) maintenance deals with unplanned, high-priority issues needing immediate attention. Flexible is not a formal category in this taxonomy; it describes how work is carried out rather than what kind of maintenance it is. Because of that, flexible doesn’t fit as a defined maintenance type, making it the option that is not a standard maintenance type.

Maintenance actions are classified by why and when they are done: corrective maintenance fixes problems after they occur, preventive maintenance is performed on a schedule to reduce the chance of failure, and emergent (urgent) maintenance deals with unplanned, high-priority issues needing immediate attention. Flexible is not a formal category in this taxonomy; it describes how work is carried out rather than what kind of maintenance it is. Because of that, flexible doesn’t fit as a defined maintenance type, making it the option that is not a standard maintenance type.