Swiss Category C Theory (Truck) Practice Questions - Switzerland Driving Theory Test - Category C (Heavy Motor Vehicles) Exam

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What is the function of the Diesel Particulate Filter (DPF / Partikelfilter) on a heavy commercial vehicle, and what is DPF Regeneration?

It filters soot particles from diesel exhaust; regeneration raises exhaust temperature under controlled conditions to oxidize trapped soot and prevent excessive filter loading It removes nitrogen oxides by dosing AdBlue directly into the filter element It filters fuel before it enters the fuel injectors It cools the cabin air

Correct Answer:

It filters soot particles from diesel exhaust; regeneration raises exhaust temperature under controlled conditions to oxidize trapped soot and prevent excessive filter loading

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