Preventive maintenance ___.

Preventive maintenance ___.

• A. Uses thermal imaging to determine problem areas
• B. Includes cleaning and lubricating gears
• C. Occurs once a year
• D. Is an unplanned shutdown

Answer: (B)

Preventive maintenance is planned, routine upkeep aimed at preventing equipment failures. A core part of it is cleaning and lubricating gears to reduce friction, remove contaminants, and extend gear life, which helps keep systems running smoothly and cuts the risk of unexpected downtime. Thermal imaging is a useful diagnostic method, but it's typically associated with predictive or condition-based maintenance, not the general definition of preventive maintenance. The frequency isn't fixed to once a year; intervals depend on manufacturer guidance and operating conditions. An unplanned shutdown is what preventive maintenance is trying to avoid, not the outcome.

Preventive maintenance is planned, routine upkeep aimed at preventing equipment failures. A core part of it is cleaning and lubricating gears to reduce friction, remove contaminants, and extend gear life, which helps keep systems running smoothly and cuts the risk of unexpected downtime. Thermal imaging is a useful diagnostic method, but it's typically associated with predictive or condition-based maintenance, not the general definition of preventive maintenance. The frequency isn't fixed to once a year; intervals depend on manufacturer guidance and operating conditions. An unplanned shutdown is what preventive maintenance is trying to avoid, not the outcome.