The Catalytic Converter Is Most Efficient When the Air-Fuel Mixture

question 11

Multiple Choice

The catalytic converter is most efficient when the air-fuel mixture is ________.

• A) at 14.7:1 air/fuel ration
• B) at 1.0 lambda
• C) varying from rich to lean (0.9 to 1.1 lambda)
• D) Both A and B

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Definitions:

Policy Makers

Individuals or groups responsible for making decisions that affect the economy, society, or governance.

Normative Economics

A branch of economics that expresses value judgments about economic fairness or what the economy ought to be like.

Positive Economics

An approach to economics that seeks to understand and explain the economy as it is, based on factual observations without making normative judgments.

Normative Statements

Opinions or judgments that reflect beliefs about what ought to be rather than statements that can be tested or verified.