A_PAIR_OF_WORM_GEAR_IS_WRITTEN_AS_2/40/12/6._CALCULATE_THE_SPEED_REDUC – McqOptions

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1.	A_PAIR_OF_WORM_GEAR_IS_WRITTEN_AS_2/40/12/6._CALCULATE_THE_SPEED_REDUCTION.?$
A.	2
B.	20
C.	15
D.	6
Answer» C. 15

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