Why must auxiliary diesel engines be warmed up before applying heavy electrical load?
Direct Answer
Option B: To ensure uniform thermal expansion of engine components and proper lube oil circulation
Auxiliary diesel engines require thorough pre-heating to achieve uniform thermal expansion across dissimilar metal components like cylinder liners and heads. This practice prevents severe thermal shock, minimizes mechanical stress, and ensures correct lubricating oil viscosity before loading.
All Options
Detailed Explanation & Context
Auxiliary diesel engines require thorough pre-heating to achieve uniform thermal expansion across dissimilar metal components like cylinder liners and heads. This practice prevents severe thermal shock, minimizes mechanical stress, and ensures correct lubricating oil viscosity before loading.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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