REVIEW
EVALUATION
The review,evaluation
is an important part
of
vour
instruction manual.
It
allo\,\,s
you
to
gauge
how well
you
have masiered
certain basic electronic
principles
as they
relate
to
your project.
When
you
have completed
this
revier,r,, have your instructor
initial
your
Progress
Guide.
TRUE
CR
FALSE: r\4ark
the
following
statements T
for true and F for false
by circling the correct letter.
TF
TF
TF
TF
TF
1. A
step-dor,vn transformer has fewer
turns
of wire in
the secondary winding than in
the
primary
winding.
2.
A filter capacitor is
used to snrooth
out
the DC.
3.
The potentiometer
in
your
power
supply
controls transistor bias.
4.
The
higher
the
percent-of-ripple,
the
better the power
supply.
5.
The
color code for
a
resistor
of
820 ohms
is
red-gray-black.
T
F
6. The
transformer
used
in
this
project
has
a center-tap in
the
prinrary
winding.
T
F
7. Trvo
zener
diodes are
used
in
the full
wave rectifier.
T F
B.
The
two leads
of a diode are
the emitter
and the collector.
MATCHINC:
ln
ihe
space
provided,
place
the correct LETTER
that matches the
schematic symbol
from
the
column on
the
right.
lf/-
A=r
-1.
DIODE,
RECTIFIER
-2.
TRANSFORMER
-3.
WIRE
CONNECTION
-4,
ZENER DIODE
-5.
NPN
TRANSISTOR
-6.
CAPACITOR
-
-7,
POTENTIOMETER
.-.8.
RESISTOR
-9.
AC
PLUG
-10.
NO
WIRE
CONNECTION
B.
G
-1+
"=l
l=
E.
COMPLETION:
Fill in
the missing
word
orwords
to
make
the statement
correct
and complete.
1. The
three leads
on a transistor are:
-
t
4. The
voltage
from
the
rectifier
is
divided
betrveen
and
-
----leads.
the
and the
output
of the
power
2. The Eu".,,,*o
voltage is found
by using a
,--
(DC,
AC) voltmeter.
The
E,..,, of Ripple
voltage is found
by using a
_
(DC,
AC) voltmeter.
supply.
5.
The
type
of rectifier
used in
this
project
is
called
J.
wave rectifier.
21
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