Chapter 63
Two technicians are discussing transistors. Technician A states that transistors are
used as a switch or an amplifier. Technician B states that transistors use a very small
current in the base to control a much larger current. Who is correct? - answerBoth
Technician A and Technician B
The junction of a diode is called a: - answerPN junction.
A Zener diode has special characteristics. What are those? - answerIt blocks current
flow until the voltage is large enough to force current through it.
An application of zener diodes in vehicles is the: - answerVoltage regulator.
A small current in the transistor base allows ____________ through the emitter-collector
junction. - answerA larger current to flow
Which of the following is NOT an example of an electronic control unit? - answerThrottle
Position Sensor (TPS)
Technician A says that vehicle network speed where different ECUs communicate with
one another is referred to as a baud rate. Technician B says that the baud rate for all of
the ECUs is the same, regardless of the ECUs function. Who is correct? -
answerTechnician A
Printed circuit boards often have two layers and as many as ___ layers to
accommodate the complex circuitry. - answer16
Control modules are being discussed. Technician A says that there may be more than
115 ECUs installed on a vehicle. Technician B says that the ECUs all communicate with
one another via the vehicles network. Who is correct? - answerBoth Technician A and
Technician B
Which of the following is NOT a part of a computer-controlled system? - answerreact
Technician A states that digital signals are continuously variable, typically changing in
strength and time. Technician B states that an analog signal is a direct on/off with no in-
between transition. Who is correct? - answerNeither Technician A nor Technician B
Two technicians are discussing transistors. Technician A states that transistors are
used as a switch or an amplifier. Technician B states that transistors use a very small
current in the base to control a much larger current. Who is correct? - answerBoth
Technician A and Technician B
The junction of a diode is called a: - answerPN junction.
A Zener diode has special characteristics. What are those? - answerIt blocks current
flow until the voltage is large enough to force current through it.
An application of zener diodes in vehicles is the: - answerVoltage regulator.
A small current in the transistor base allows ____________ through the emitter-collector
junction. - answerA larger current to flow
Which of the following is NOT an example of an electronic control unit? - answerThrottle
Position Sensor (TPS)
Technician A says that vehicle network speed where different ECUs communicate with
one another is referred to as a baud rate. Technician B says that the baud rate for all of
the ECUs is the same, regardless of the ECUs function. Who is correct? -
answerTechnician A
Printed circuit boards often have two layers and as many as ___ layers to
accommodate the complex circuitry. - answer16
Control modules are being discussed. Technician A says that there may be more than
115 ECUs installed on a vehicle. Technician B says that the ECUs all communicate with
one another via the vehicles network. Who is correct? - answerBoth Technician A and
Technician B
Which of the following is NOT a part of a computer-controlled system? - answerreact
Technician A states that digital signals are continuously variable, typically changing in
strength and time. Technician B states that an analog signal is a direct on/off with no in-
between transition. Who is correct? - answerNeither Technician A nor Technician B
