METAL PROPERTIES, CHAR, USES, AND CODES - OD1643 - LESSON 1/PE 1
c.
What is the purpose of using the element of carbon in plain
carbon steel?
d.
On what does the classification of metal as a cast iron or as
one of the steels depend?
e.
List two ferrous metals.
f.
List two nonferrous metals.
g.
List the four tests
that
can
be
conducted
in
the
shop
for
identifying metals.
h.
In what type metal are the unmachined surfaces very dull gray in
color and somewhat roughened by the sand mold used to cast the
part?
i.
What type metal will sometimes
contain
small
bubblelike
depressions on its surface?
j.
What is the name of the test that is conducted with the use of a
grinding wheel for identifying the exact type of a metal?
k.
What is the type of metal where the bursts produced by its
carbon content are so profuse that the stream emitted by
grinding becomes very bushy and particles from the initial
bursts produce secondary bursts resulting in a fine branching
network of light?
l.
What chemical solution
is
used
to
distinguish
steel
from
aluminum or lead?
m.
What chemical
solution
is
used
to
distinguish
aluminum
from
mangnesium?
n.
What type of hardness test uses the rebound of a diamond-pointed
hammer to determine the hardness of a metal?
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