3
1-18. For maximum power transfer between
circuits, what impedance relationship
should there be between the two circuits?
1. The output impedance of circuit
number one should be higher
2. The input impedance of circuit
number one should be higher than the
output impedance of circuit .number
two
3. The output impedance of circuit
number one should be lower than the
input impedance of circuit number
two
4. The output impedance of circuit
number one should be equal to the
input impedance of circuit number
two
1-19. For maximum current at the input to a
circuit, what should the relationship of
the input impedance be to the output
impedance of the previous stage?
1. Higher than
2. Lower than
3. Equal to
4. The impedance relationship is
immaterial
1-20. What is the (a) input impedance and
(b) output impedance of a common-base
transistor configuration?
1. (a) Low
(b) low
2. (a) Low
(b) high
3. (a) High
(b) low
4. (a) High
(b) high
1-21. What transistor configuration should be
used to match a high output impedance to
a low input impedance?
1. Common collector
2. Common emitter
3. Common gate
4. Common base
1-22. What type of coupling is most useful for
impedance matching?
1. RC
2. Resistor
3. Impedance
4. Transformer
1-23. What is feedback?
1. The control of a circuit output signal
by the input signal
2. The control of a circuit input signal
by the output signal
3. The coupling of a portion of the
output signal to the input of the
circuit
4. The coupling of a portion of the input
signal to the output of the circuit
1-24. Which of the following terms describe
the two types of feedback?
1.
Positive and negative
2.
Degenerative and regenerative
3.
Both 1 and 2 above
4.
Bypassed and unbypassed
1-25. What type of feedback provide an
increased amplitude output signal?
1. Positive
2. Negative
3. Bypassed
4. Unbypassed
1-26. Distortion caused by amplifier saturation
can be reduced by using which of the
following types of feedback?
1. Positive
2. Negative
3. Regenerative
4. Unbypassed
