Technician a Says That the Nozzles Used by DI Combustion

Technician A says that the nozzles used by DI combustion engines mix air and fuel faster and produce less combustion noise than nozzles used in IDI combustion engines. Technician B says that before the introduction of electronically controlled DI systems, IDI combustion engines produced less noise with fewer emissions and had higher maximum engine rpm than DI combustion engines did. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Correct Answer:

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