Engine Operating Modes Are Being Discussed

question 22

Multiple Choice

Engine operating modes are being discussed. Technician A says that when the engine is in closed-loop mode, the PCM monitors sensor inputs, then adjusts the timing, air fuel ratio, and emission controls. Technician B says the system will switch into open loop when the throttle is fully opened or the oxygen sensors cool down during idle. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B

---

Definitions:

Hand Gestures

Physical movements of the hands used to convey messages, emotions, or directives, often accompanying speech.

Online Interview Simulator

A digital tool or application designed to mimic the environment of a job interview, allowing users to practice and improve their interview skills virtually.

Human Resources Professionals

Individuals who work within an organization focusing on recruitment, management, and providing direction for the people who work in the organization.

Memorizing

The process of committing something to memory or learning it by heart.