Turning gear on main engine is provided for
Direct Answer
Option B: turning the engine during overhaul
The turning gear is provided on the main engine to allow slow rotation of the crankshaft during maintenance, overhaul, or pre-starting checks. This ensures even cooling, allows access to components, and prevents seizure.
All Options
Detailed Explanation & Context
The turning gear is provided on the main engine to allow slow rotation of the crankshaft during maintenance, overhaul, or pre-starting checks. This ensures even cooling, allows access to components, and prevents seizure.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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