In gears, interference takes place when
A
the tip of a tooth of a mating gear digs into the portion between base and root circles
B
gears do not move smoothly in the absence of lubrication
C
pitch of the gears is not same
D
gear teeth are undercut
Correct Answer: the tip of a tooth of a mating gear digs into the portion between base and root circles
Interference occurs when the number of teeth on the smaller of the two meshing gears is less than a required minimum.