Which maintenance approach emphasizes preventive maintenance and ongoing efforts to adapt and refine equipment, with involvement of all qualified maintenance personnel?

• A. Total line-haul cost
• B. Total productive maintenance (TPM)
• C. Wait time
• D. U-lines

Answer: (B)

Total Productive Maintenance (TPM) emphasizes preventive maintenance and ongoing refinements to equipment, with involvement of all qualified maintenance personnel. TPM treats maintenance as a shared responsibility across the organization, not just a separate team. It combines planned preventive maintenance with autonomous maintenance by the people who operate the equipment, and it continuously seeks improvements based on data and feedback. The goal is to eliminate losses—unplanned downtime, minor stops, reduced speeds, defects—by keeping equipment in peak condition and refining it over time. Because the question highlights preventive tasks, continuous adaptation of the equipment, and broad participation by maintenance-qualified staff, TPM is the best fit. Other terms describe metrics or line configurations rather than a maintenance philosophy, so they don’t address the combination of preventive maintenance and cross-functional involvement in sustaining equipment performance.