Automobile Engineering in ME
The main function of a resonator is that it

Regulates the intake air temperature
Reduces the intake air noise
Enhances intake efficiency
Regulates the intake air flow rate

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Automobile Engineering in ME
The condition that causes vapour locking in a brake system is

Keeping the vehicle without use for an extended period
Overcooling of the brakes during high speed driving
Overheating of the fluid due to frequent brake application
An excessively high engine speed on a downhill road

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