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The purpose of a catalytic converter is to reduce

A toxic exhaust gases

Catalytic converters are designed to reduce a large percentage of toxic emissions. They work more efficiently when the engine has reached its normal working temperature.



2 years ago

I love its graphics


2 years ago

This app helps me learn whilst being free. I can learn my weaknesses and aim to pass at higher score


2 years ago

Helping my daughter with the theory side of the test. Only wish we’d found it earlier on! Even I’m learning/getting reminded of what things mean again!

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