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

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Definitions:

Worst Case Scenario

The most adverse or negative outcome that can happen in a given situation.

Potential Cash Flows

Forecasted cash receipts and payments that a company expects from its operations and investments.

Financial Investments

Assets purchased with the expectation that they will generate income or appreciate in the future, such as stocks, bonds, or real estate.

Cash Flow Patterns

Describes the inflows and outflows of cash over a period, illustrating how a company receives and spends its money.