Exam 22: Basics of Electronics and Computer Systems

Technician A touches a good ground immediately before touching a computer module. Technician B wears a grounding wrist strap before touching the computer electrical connections and computer case. Who is correct?

The throttle position sensor is a rotary _____.

Transistor operation is being discussed. Technician A says that when the base of a PNP is connected to ground, the transistor is turned off. 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?

Technician A says diodes are used to rectify the voltage produced from an AC generator. Technician B says a zener diode protects circuit components from voltage spikes. Who is correct?

A multiplex wiring system uses bus data links that connect different computers or control modules together.

The location in the computer memory where a piece of data is stored is called a(n)____________________.

On today's vehicles, ____________________ diodes are commonly used to prevent voltage spikes in circuits as magnetic fields collapse.

Actuators (outputs)are being discussed. Technician A says they are variable resistance/ reference-types, switches, and thermistors. Technician B says they convert electrical current into mechanical action. Who is correct?

What is an integrated circuit?

Which of the following is a semiconductor?

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

A(n)____________________ module allows for data exchange between two different buses.

A common use for a clamping diode is in the air-conditioning ____________________ coil.

The number of charge/discharge cycles an ultracapacitor can supply to the hybrid traction motor system is ______.

Energy storage is being discussed. Technician A says a battery stores energy chemically. Technician B says a capacitor stores energy in an electrostatic field between two electrodes. Who is correct?

In an automotive computer system, what does the term "feedback" mean?

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

What is meant by the term "pulse width"?

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

The EEPROM located in a computer allows stored information to be electrically changed.