9
iron
10
Since gage blocks are commonly made of two
types of steel and carbide, we can conclude that
phosphor bronze
these metals are better gage block materials
than materials such as __________ , ____________
aluminum
______________ , and ________________ .
28
Johansson
29
Gage blocks, whether square or rectangular,
or
are produced in sizes within the limits indicat-
rectangular
ed in Figure 5 below. You can use gage blocks
for measurements between ______ inch and ______
___________ inches.
45
accuracy
(Go to page 23)
Figure 5. Gage block construction limits.
64
nicks
65
The items listed below have at least one
burs
thing in common. Any one or all of them affect
measurement
the ______________ ___________ of a gage block.
accuracy
rough handling
nicks and burrs
cleaning with abra-
accidental contact
sive materials
with the sharp
striking two blocks
corners of hard
together surfaces
84
dirt
85
There are at least two gage block wringing
surfaces
procedures. This course will present the essen-
burrs
tial steps for one of the ________________ pro-
nicks
cedures and provide basic information on the
corrosion
principle applied in a second procedure.
102
wrung
103 When gage blocks are left wrung together
for periods longer than 30 to 60 minutes, separ-
long
ation of the blocks may cause damage to the
blocks. If at all possible, don't leave the
time
blocks wrung even for ________ to ______ minutes.
Never leave them wrung beyond these limits.
21
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