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Class 2 (2nd Engineer) MEKM 📅 Aug 2025

Exam Question

(a) To improve the power-to-weight ratio of an engine, it is necessary to increase the Mean effective pressure. Discuss the importance of turbocharger compression ratio in this regard. Why has it become necessary to introduce two-stage turbocharging?

(b) With reference to turbochargers with variable turbine area, explain

(i) Which area is varied

(ii) Why is it varied

(iii) How is it varied

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