An epicyclic gear train is shown in the figure below. The number of te – McqOptions

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1.	An epicyclic gear train is shown in the figure below. The number of teeth on the gears A, B and D are 20, 30 and 20, respectively. Gear C has 80 teeth on the inner surface and 100 teeth on the outer surface. If the carrier arm AB is fixed and the sun gear A rotates at 300 rpm in the clockwise direction, then the rpm of D in the clockwise direction is
A.	240
B.	-240
C.	375
D.	-375
Answer» D. -375

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