Exam 22: Basics of Electronics and Computer Systems

If a 100 microfarad capacitor is charged off of a 12 volt battery, how many volts will be present between the terminals of the capacitor?

The _____ changes analog signals produced by sensors into digital signals that the computer can use to process and store data.

Some multimeters display RMS readings for ______.

The two main computers in a modern vehicle are the PCM [powertrain control module] and the _____________________.

Zener diodes are often used to regulate circuit ____________________.

In an OBD-II system, each component is checked by a diagnostic routine to verify that it is functioning properly.

Which of the following is a type of diode?

Lab scopes are being discussed. Technician A says a lab scope can be used to measure resistance. Technician B says that a lab scope can be used to measure frequency by dividing the length of a cycle into 1. Who is correct?

An engine coolant temperature sensor is an example of a(n) ______.

A ____________________ is used to amplify and condition the weak voltage signals from some sensors, typically Hall-effect type sensors.

Semiconductors are being discussed. Technician A says a semiconductor can be used as a conductor. Technician B says a semiconductor can be used as an insulator. Who is correct?

A(n) ____________________ is a special diode that emits light when current passes through it.

Technician A says transistors are semiconductors. Technician B says transistors function as one-way valves for current flow. Who is correct?

A scan tool is NOT required to retrieve DTCs on late model vehicles.

_____ allows control modules to share sensor and output status information without the need for additional sensors or wiring.

Which of the following is NOT made of semiconductor material?

What is the difference between an analog signal and a digital signal?

Transistor operation is being discussed. Technician A says that when the base of a PNP is connected to ground, the transistor is turned on. Technician B says that when the base of an NPN transistor has a positive voltage applied to it, the transistor is turned on. Who is correct?

Actuators are electromechanical devices that convert mechanical action into electrical signals.

A(n) _____is often used to prevent damage to electronic components from the voltage spikes produced when electromagnetic coils are turned off.