| 1. |
Amplitude is a term that describes the size of a signal. |
|
|
True |
|
|
False |
| 2. |
SIGNAL is a general term used to refer to a.c.or d.c. of interest in a circuit; e.g., input signal and output signal. |
|
|
True |
|
|
False |
| 3. |
What determines the class of operation of an amplifier? |
|
|
Amount of time in which current flows in the output circuit |
|
|
None |
| 4. |
What are the four classes of operation of a transistor amplifier? |
|
|
A, AB, B, C |
|
|
A, B, C, D |
|
|
A, AB, |
| 5. |
Figure1-8 represents |
|
|
Adding stages of amplification |
|
|
Direct-coupled transistor amplifiers |
| 6. |
In direct coupling the output of one stage is connected directly to the input of the following stage.
|
|
|
True |
|
|
False |
| 7. |
What is the most common form of coupling?
|
|
|
RC coupling |
|
|
Transformer coupling |
| 8. |
There are two types of feedback in amplifiers. They are |
|
|
Positive Feedback \ Regenerative Feedback |
|
|
Negative Feedback \ Degenerative Feedback |
|
|
Both |
| 9. |
What is one use for a splitter? |
|
|
A phase splitter is used to provide the input signals to a push-pull amplifier. |
|
|
Not the above |
| 10. |
Figure 1-23 represents |
|
|
Transistor audio amplifier |
|
|
FET audio amplifier |
| 11. |
What is the bandwidth of an amplifier? |
|
|
Difference between the upper and lower frequency limits of an amplifier |
|
|
Bandwidth of a transformer |
| 12. |
What are the upper and lower frequency limits of an amplifier? |
|
|
Half-power points of a frequency-response curve |
|
|
Full-power points of a frequency-response curve |
| 13. |
What is the purpose of R4? |
|
|
A part of the low-frequency compensation network for Q1 |
|
|
A decoupling capacitor for the effects of R2 |
| 14. |
Figure 2-21 represents _______________. |
|
|
Typical RF amplifier |
|
|
Typical AM radio RF amplifier |
|
|
None |
| 15. |
A frequency response curve will enable to determine the bandwidth and the upper and lower frequency limits of an amplifier. |
|
|
True |
|
|
False |
| 16. |
How many inputs and outputs are possible with a differential amplifier as in chapter3? |
|
|
Two inputs, two outputs |
|
|
One input, two outputs |
| 17. |
Figure 3-8. represents ______________. |
|
|
Single-input, differential-output differential amplifier |
|
|
Single-input, single-output differential amplifier |
| 18. |
Operational amplifiers are usually high-gain amplifiers with the amount of gain determined by feedback. |
|
|
True |
|
|
False |
| 19. |
Figure 3-11 represents ____________. |
|
|
Block diagram of an Op-amp |
|
|
Schematics of an Op-amp |
| 20. |
A magnetic amplifier uses a changing inductance to control the power delivered to a load.
|
|
|
True |
|
|
False |
|
