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Which outcome occurs when dissolved water contaminates gasoline?

A)Fuel pump experiences vapor lock
B)Engine knock risk greatly increases
C)Catalytic converter efficiency improves
D)Complete combustion becomes more efficient

💡 Explanation

Vapor lock occurs because water contamination lowers gasoline's vapor pressure, leading to premature vaporization in the fuel pump's low-pressure zone; therefore, vapor bubbles impede fuel delivery, rather than improving combustion or catalytic converter performance.

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