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:

Molecules

Entities consisting of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

Lock-And-Key Model

A model describing the mechanism of enzyme action, where the enzyme and substrate fit together perfectly like a lock and key.

Antigen

A substance that, when introduced into the body, triggers an immune response.

Antibody

A protein produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.