For which of the following engine lean-burn concept is ideal?(a) CI engine(b) SI engine(c) Free piston engine(d) Wankel engineI had been asked this question by my school teacher while I was bunking the class.This intriguing question originated from Nonconventional Engines topic in section Nonconventional Engines, Conventional Energy Sources & Cooling System of Automobile Engineering

For which of the following engine lean-burn concept is ideal?(a) CI en

1.	For which of the following engine lean-burn concept is ideal?(a) CI engine(b) SI engine(c) Free piston engine(d) Wankel engineI had been asked this question by my school teacher while I was bunking the class.This intriguing question originated from Nonconventional Engines topic in section Nonconventional Engines, Conventional Energy Sources & Cooling System of Automobile Engineering
Answer» The correct choice is (B) SI engine The best I can explain: SI engines are more ideal for the lean-burn CONCEPT. A lean-burn MODE is a way to REDUCE throttling losses. In SI engine, the power is reduced by partially closing a throttle.

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