TC 9-62
CHAPTER 2
CHECK-ON-LEARNING QUESTIONS
When you are satisfied that you have answered every question to the best of your ability,
check your answers using Appendix A. If you missed eight or more questions, you should
review the chapter, paying particular attention to the areas in which your answers were
incorrect.
What is the name given to the semiconductor device that has three or more elements?
1.
Transistors are classified according to the arrangement of what?
2.
In which direction does the arrow point on an NPN transistor?
3.
What was the name of the very first transistor?
4.
What is one of the most important parts of any transistor manufacturing process?
5.
What is the simple way to remember on how to properly bias a transistor?
6.
Ensure bias voltage polarities are correct before doing what?
7.
What is the name for the majority carriers in N-type material?
8.
Total current flow in the NPN transistor is through what?
9.
What are the majority current carriers in a PNP transistor?
10.
What happens when the emitter hole and a base electron meet in a PNP forward-biased
11.
junction?
What type of current flow is found in a PNP reverse-biased junction?
12.
Name the two current loops in a transistor?
13.
What is the name of the device that provides an increase in current, voltage, voltage, or
14.
power of a signal without appreciably altering the original signal?
Besides eliminating the emitter-base battery, what other advantages can different biasing
15.
methods offer?
What passes the AC input signal and blocks the DC voltage from the preceding circuit?
16.
What is the primary difference between the NPN and PNP amplifiers?
17.
Which biasing method is the most thermally unstable?
18.
What type of bias is used where only moderate changes in ambient temperature are
19.
expected?
Why is degeneration sometimes desired in an amplifier?
20.
What is the most widely used combination-bias system?
21.
What amplifier class of operation allows collector current to flow during the complete
22.
cycle of the input?
The class AB operated amplifier is commonly used as what type of amplifier?
23.
What two primary things determine the class of operation of an amplifier?
24.
An amplifier has how many input sources?
25.
What are the three transistor configurations?
26.
2-48
TC 9-62
23 June 2005
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