Class 2 (2nd Engineer) MEP 📅 Dec 2025

Exam Question

With reference to the main gearing and gearbox, state with reasons:

(a) Why the first examination after commissioning is of special importance.

(b) What parts would receive the closest scrutiny and what defects might possible be found.

Reference Answer

(a) Importance of the First Examination After Commissioning:
Any initial design flaws or manufacturing defects that may have been missed during the initial construction and testing phases will likely manifest themselves during the initial operational period
During the initial trial, the engine is slowly started, and various parameters are monitored. The speed of the engine is gradually increased, and all parameters are monitored.
The inspection of the gearbox after commissioning will reveal the characteristics of the gearing system as to how it responds to various speeds and load

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