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CMA Intermediate · Operations Management and Strategic Management · Economics of Maintenance and Spares Management

A plant in Pune fits sensors to its turbines and schedules overhaul only when vibration and temperature readings cross set limits. Which statement best describes this approach?

It is predictive, or condition-based, maintenance. Overhaul is triggered by monitored vibration and temperature readings crossing limits rather than by a fixed calendar or by failure. This differs from time-based preventive maintenance and from breakdown maintenance, which acts only after the equipment has already failed.

  1. AIt is predictive (condition-based) maintenance, as action depends on monitored equipment conditionCorrect
  2. BIt is breakdown maintenance, as action follows a limit being crossed
  3. CIt is routine time-based preventive maintenance, as sensors fix the overhaul calendar
  4. DIt is shutdown maintenance, as the turbines are stopped for the overhaul

Explanation

Predictive maintenance uses condition monitoring data to decide when to intervene. Unlike time-based preventive maintenance, the timing is not fixed in advance. Breakdown maintenance occurs only after failure, which has not happened here.

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