Which effect occurs when excessive fuel is injected during cold start of a gasoline engine?

💡 Explanation

When excessive fuel is injected during cold starts, incomplete combustion occurs because the engine isn't hot enough for efficient vaporization, leading to an over-rich mixture entering the catalytic converter, causing it to overheat. Therefore converter overheating results, rather than bearing damage, valve float or injector clogging, which require different failure modes.

• Which outcome occurs when gallium-arsenide doping shifts in a heterojunction bipolar transistor?
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