The air-fuel ratios used in the normal
operation of SI and CI engines are :
एसआई और सीआई इंजन के सामान्य संचालन में उपयोग किए जाने वाले वायु-ईंधन अनुपात हैं:
Excess air for CI and around
stoichiometric for SI
Excess air for CI and SI
Around stoichiometric for both SI and
CI
Very rich mixture for SI and lean
mixture for CI
Excess air for CI and around
stoichiometric for SI
The air-fuel ratio used in the normal operation of SI and CI engines are excess air for CI engine and around stoichiometric for SI engine. A mixture that contains just enough air for complete combustion of all the fuel in the mixture is called a chemically correct or stoichiometric fuel-air ratio.
Hence, the correct option is (A).
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