Class 2 (2nd Engineer) MEKG 📅 Apr 2025

Exam Question

How do preventive, predictive and corrective maintenance strategies differ in the management of ship equipment, and what are the advantages and disadvantages of each approach in ensuring the reliability and longevity of machinery onboard ship? (16)

Reference Answer

### Introduction to Maintenance Strategies
Onboard a vessel, the reliability and longevity of machinery are paramount for safety, operational efficiency, and commercial viability. The management of this machinery is governed by distinct maintenance philosophies. The three primary strategies employed are **Preventive**, **Predictive**, and **Corrective** maintenance. An effective ship management plan, compliant with the International Safety Management (ISM) Code, typically integrates elements of all three to create a comprehensive maintenance system.
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### 1. Preventive Maintenance (PM)

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