flag question\ntechnician a says that speed density systems use vehicle speed and fuel density to determine…

flag question\ntechnician a says that speed density systems use vehicle speed and fuel density to determine injector pulse width. technician b says that mass airflow systems use a sensor to measure the mass of the air entering the engine. who is correct?\n a. technician a\n b. technician b\n c. both technician a and technician b\n d. neither technician a nor technician b\nprevious page\nnext page

flag question\ntechnician a says that speed density systems use vehicle speed and fuel density to determine injector pulse width. technician b says that mass airflow systems use a sensor to measure the mass of the air entering the engine. who is correct?\n a. technician a\n b. technician b\n c. both technician a and technician b\n d. neither technician a nor technician b\nprevious page\nnext page

Answer

Brief Explanations:

Speed - density systems use manifold absolute pressure (MAP) and engine speed to determine injector pulse width, not vehicle speed and fuel density. Mass - airflow systems indeed use a sensor (mass - air - flow sensor) to measure the mass of the air entering the engine.

Answer:

B. Technician B