Q.

If reference circle of gear is eccentric then which error is reflected by this eccentricity?

A. cyclic error
B. periodic error
C. pitch error
D. undulation
Answer» C. pitch error
Explanation: it must be emphasised that there are some in-built limitations in the gear itself while the accuracy of measurement of gear depends upon the measuring equipment available, such as the inability of a gear to define its own axis of rotation. thus if the reference circle of gear is eccentric, it would be reflected in pitch error.
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