Multiple Choice
Technician A says that any vehicle producing excessive NOx emission can be identified by performing an opacity test on its exhaust smoke. Technician B says that PM in the exhaust gas is always identified in J1667 opacity testing. Who is right?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Correct Answer:
Verified
Correct Answer:
Verified
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