Which of the following statements is LEAST-Likely true? A) NO_X is formed when nitrogen and O₂ combine in the combustion chamber at sustained high temperatures in excess of 2,500⁰F. B) When NO_X is combined with HCs in the presence of sunlight, smog is formed. C) Deposits are more common on engines with low mileage. D) A lean air-fuel ratio can increase NO_X when it causes preignition.

Question

Quizplus · Accepted Answer

C) Deposits are more common on engines with low mileage is the least likely true statement. Typically, deposits accumulate over time and with use, making engines with high mileage more prone to deposits than those with low mileage.

Which of the Following Statements Is LEAST-Likely True