1.
Voltage regulators are usually attached to which of these?
a.
the starter.
b.
the alternator.
c.
the battery.
2.
If the 2 input signals to a differential are equal, the amp can be used for what purpose?
a.
common rejection noise cancellation.
b.
common emitter doubling.
c.
both of these.
3.
If a differential amplifier has 2 equal and opposite signals the output will be?
a.
2 times 2 equalling 4.
b.
the same.
c.
doubled.
4.
A zener voltage regulator has an input voltage of 20volts, .01ohms load reisitor, and .04 ohms source resistor. Find the load voltage?
a.
4 volts.
b.
.4 volts .
c.
20 volts.
5.
Other than a demodulator, a FM reciever must have which of these to match a resonant frequency of the incoming wave?
a.
router.
b.
tuner.
c.
modem.
6.
Operational amplifier are based on which of these curcuits?
a.
push-pull amplifier.
b.
differential amplifier.
c.
common-collector amplifier.
7.
Op amps has he inputs connected to which of these?
the emitter of one transistor
a.
.
b.
base of 2 transistors.
c.
the load resistor.
8.
Transistorized amps are used for all but one of these?
a.
audio stereo amps.
b.
zener regulator.
2 stage common emitter amp
c.
.
9.
Which of these has high resistance in one direction and low resistance in the other direction?
a.
a variable resistor.
b.
an induction coil.
c.
a diode.
10.
The main difference between op amps and FETs is the following?
a.
One is reverse biased.
b.
One is similar to a diode.
c.
FETs are more efficient.