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Which of these evaporative control valve(s) is/are normally open?

A. Canister vent valve
B. Canister purge valve
C. Neither the canister purge nor canister vent valve
D. Both the canister purge and canister vent valve

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LearnGrow
Canister vent valve is an evaporative control valve that is normally open.
Correct answer: A
The canister vent valve is part of the  Evaporative Emission Control (EVAP) system that prevents fuel vapors from the fuel tank from escaping into the atmosphere.

Answer is A. Canister vent valve.

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