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

A textile mill in Surat replaces the bearings of its looms every 6 months according to a fixed calendar, whether or not the bearings show any wear. Which type of maintenance is this?

This is preventive maintenance, because the bearings are replaced on a fixed time schedule regardless of their actual condition. The aim is to avoid failures before they occur. Predictive maintenance would depend on condition monitoring, and breakdown maintenance would wait until the bearings fail.

  1. ABreakdown maintenance
  2. BPreventive maintenanceCorrect
  3. CPredictive maintenance
  4. DCorrective maintenance after inspection

Explanation

Replacement at fixed intervals irrespective of condition is the hallmark of preventive (time-based) maintenance. Predictive maintenance would instead act on measured condition such as vibration readings. Breakdown maintenance waits for failure.

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