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Class 2 (2nd Engineer) MEKM 📅 Apr 2018

Exam Question

(a) What are the possible reasons for turbocharger vibration while operating at a steady speed?

(b) How are the incidents of turbo charger vibration minimized?

(c) Explain the procedure to maintain operation of 2 stroke engine when turbocharger is taken out of use

(d) How is the engine operation affected when operated with a by-passed turbocharger?

Reference Answer

(a) Possible reasons for Turbocharger vibration while operating at steady speed:
Accumulated dirt or deposits on turbine blades or compressor impellers can cause an imbalance in the rotating assembly.
Turbine blades or lashing wires may be damaged due to wear, fatigue, or foreign object impact.
A loose or improperly secured blower impeller can create uneven rotation and vibrations.

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