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Multiple Choice Quiz
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1
A term used to describe the concept of perfect form at MMC is:
A)datum reference frame
B)the envelope principle
C)rule #1
D)departure from MMC
2
Which of the following is descriptive of the datum reference frame?
A)six degrees of freedom
B)located based on the functionality of the part
C)three orthogonal planes
D)all of the above
3
The primary datum feature should be established based on:
A)an inaccessible feature that is unlikely to get damaged
B)the feature that is likely to fluctuate most in size and shape
C)a feature that has predictable variation
D)the curved rather than flat surface of a cylinder
4
Which of the following is not an open gage?
A)calipers
B)a height gage
C)a cylinder
D)a coordinate measuring machine
5
All of the following controls are based directly on the concept of straightness, except:
A)line profile
B)roundness
C)flatness
D)parallelism
6
___________ gaging often involves fabricating a special device specifically for a particular control
A)open
B)functional
C)CMM
D)none of the above
7
A vast majority of functional gages are made to check _________ tolerances
A)position
B)runout
C)circularity
D)flatness





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