The air-fuel ratios used in the normal operation of SI and CI engines – McqOptions

MCQOPTIONS

1.	The air-fuel ratios used in the normal operation of SI and CI engines are:
A.	Around stoichiometric for both SI and CI
B.	Excess air for CI and SI
C.	Excess air for CI and around stoichiometric for SI
D.	Very rich mixture for SI and lean mixture for CI
Answer» D. Very rich mixture for SI and lean mixture for CI

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