Which effect increases when a car's internal combustion engine exceeds its design speed (RPM)?

💡 Explanation

When an engine exceeds design speed, valve float occurs because the valve spring’s restoring force cannot overcome the inertia of the valve train, preventing complete valve closure at the correct time. Therefore valve float occurs, rather than increased efficiency, reduced friction, or lower emissions which all would imply improved engine operations not a failure.

• Which mechanism enables faster product formation during catalytic cracking?
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• Which risk increases when entangled photons decohere prematurely?
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