What does the planned maintenance to corrective maintenance ratio refer to?

The planned maintenance to corrective maintenance ratio (Option C) measures the effectiveness of preventive maintenance compared to unplanned repairs.

Why Option C is Correct?

A higher planned maintenance ratio means fewer emergency breakdowns and lower repair costs.

Tracking this ratio helps assess maintenance efficiency and justify preventive maintenance investments.

IFMA’s Operations & Maintenance Core Competency emphasizes the importance of balancing planned and corrective maintenance to optimize resources.

Why Other Options Are Incorrect?

Option A (Work being done right the first time): This measures quality control, not the ratio of planned vs. corrective maintenance.

Option B (Serving occupant needs): While maintenance affects occupants, this ratio specifically assesses cost-effectiveness of preventive strategies.