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Truck & Transport
Truck and Transport Mechanic Red Seal Certification
Emissions Control Systems
Knowledge Check
Emissions Control Systems
Knowledge Check
Knowledge Check
1 / 10
How does the EGR system lower NOx formation during combustion?
A
It injects DEF into the intake manifold to neutralize NOx
B
It adds a catalytic coating to the combustion chamber walls
C
It displaces oxygen with inert exhaust gas, reducing peak combustion temperature
D
It increases the oxygen concentration in the combustion chamber
Check Answer
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