Technician a Says the Problem with Using Automobile Catalysts in the Exhaust

question 42

Multiple Choice

Technician A says the problem with using automobile catalysts in the exhaust system of diesel engines is the system's excess air and cool temperatures. Technician B says diesel exhaust catalysts need to be designed to withstand the higher exhaust temperatures of a diesel engine and its exhaust's lower oxygen content. Who is correct?

• A)Technician A"
• B)Technician B"
• C)Both A and B
• D)Neither A nor B"

---

Definitions:

Depressive Episode

A period characterized by persistent sadness, loss of interest in activities, and other symptoms that disrupt daily functioning.

Hypomanic

A mood state characterized by persistently elevated, expansive, or irritable mood, but less severe than full-blown mania, often seen in bipolar disorder.

Mania

A bipolar mood disorder characterized by flamboyance and expansiveness. A person experiencing a manic episode may go on shopping sprees, engage in sexually promiscuous behaviour, take on numerous, unrealistic work commitments, brag, and dominate others socially. In general, the person shows intolerance when the world does not cooperate with his or her momentary needs. Extreme or prolonged cases of mania are considered bona fide psychotic states, implying that the person is experiencing a break with reality. From the Greek mainomai, “to be mad.” See also hypomania.

Depression

A mental health disorder that is marked by persistent feelings of sadness, apathy, and loss of interest, significantly affecting daily functioning.