Gage blocks were invented by Carl Johansson
His blocks were constructed in one of the two
shapes commonly used for gage blocks. Since
Major Hoke invented the square gage block, you
know that the Johansson block is _______________
When you add the numbers 8, 12, and 53
respectively to the lower limit for gage sets
most widely used, you have the respective num-
bers for sets between the lower and upper limits
These numbers are _____ , _____ , and _____ .
When gage blocks are received from the
factory, they are covered with a rust proof
grease. You must remove this ______ __________
No Response Required
______________ before you use the blocks.
Since the dimensional area standard temper-
ature is _____ , _____ , the temperature in the
dimensional area of your laboratory may vary
from _____ to _____ .
Review the wringing procedure.
Bring the gage block mating surfaces into
contact so that they will be flat against
Using a rotary motion, shift the blocks half
out of engagement; and at the same time re-
tain some contact between the mating surfaces
Slide the blocks together so that their mat-
ing surfaces coincide. (No response required)
The response for
109 is on page 37.
Gage block length or thickness.
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