Multiple Choice
Which of the following statements is LEAST-Likely true?
A) NOX is formed when nitrogen and O2 combine in the combustion chamber at sustained high temperatures in excess of 2,500°F.
B) When NOX 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 NOX when it causes preignition.
Correct Answer:

Verified
Correct Answer:
Verified
Q12: The objective of OBD II is to
Q13: What are some of the items that
Q14: Which of the following is LEAST-Likely a
Q15: All of the following statements about diagnostic
Q16: OBD II requires each manufacturer to use
Q18: The term MOST-Likely used to describe the
Q19: Mode _ displays vehicle information, including the
Q20: While having a discussion, Technician A says
Q21: The MIL located on the dash display
Q22: All of the following statements are true