AUT108 Week 6 Quiz Engine Management

When cycled very quickly, digital signals can be used to create a(n) _______, similar to the variable control provided by an analog signal.

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Tech A says that analog signals are continuously variable signals. Tech B says that digital signals are direct on/off signals with no in-between transition. Who is correct?

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About how much signal voltage is generated by a throttle position sensor at closed throttle?

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The rate at which these sound waves reach our ears is called ________.

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Tech A says that potentiometer type sensors use a variable resistance to create a variable voltage signal that corresponds to a specific condition. Tech B says that oxygen sensors are the potentiometer type. Who is correct?

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In a vehicle, thermistors are used in various sensors related to:

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Tech A says that the oxygen sensor is part of the feedback system for the engine management system. Tech B says that long-term fuel trims that are positive means that the PCM is leaning out the fuel mixture from the base pulse-width setting. Who is correct?

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Tech A says that in modern vehicles, an oxygen sensor is only positioned in the exhaust pipe after the catalytic converter. Tech B says that the oxygen sensor provides the electronic body control module (EBCM) with an electrical signal that relates to the amount of oxygen in the exhaust gas. Who is correct?

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Tech A states that the PCM also communicates with other electronic control modules on the vehicle. Tech B states that the PCM is a gateway node that is connected to each of the other networks. Who is correct?

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Which of the following is often used to control other actuators when the computer needs to control a high-current load?

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