Which of the following statements is LEAST-Likely true? A) NO_X emissions are highest at a point near stoichiometric. B) NO_X emissions are more when the mixture is leaner than 16:1. C) The catalytic converter is more efficient at controlling HC and CO when the air-fuel mixture is stoichiometric. D) A rich mixture will cool combustion and has less O₂, so NO_X emissions are lower.

Question

Quizplus · Accepted Answer

NOS emissions are typically higher in lean conditions due to higher temperatures facilitating the reaction between nitrogen and oxygen to form NOx. However, statement B suggests the opposite, making it the least likely true.

Which of the Following Statements Is LEAST-Likely True