Cert III Automotive Mechanic Practice Questions - Certificate III In Light Vehicle Mechanical Technology (AUR30620) Exam

What does 'valve overlap' refer to in engine valve timing?

The period when both intake and exhaust valves are open together The time both valves remain fully closed The lift difference between intake and exhaust valves The gap between the rocker and valve stem

Correct Answer:

The period when both intake and exhaust valves are open together

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