In which of the following condition torsional vibration will not take – McqOptions

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1.	In which of the following condition torsional vibration will not take place, considering 3 rotors A, B and C. A is rotating in clockwise direction.
A.	B in clockwise C in anticlockwise
B.	C in clockwise B in anticlockwise
C.	B and C in clockwise
D.	B and C in anticlockwise
Answer» D. B and C in anticlockwise

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