Question:-
A slender shaft supported on two bearing at its ends carries a disc with a eccentricity ‘e’ from the axis of rotation. The critical speed of the shaft is N. if the disc is replaced by a second one of same weight but mounted with an eccentricity 2e, critical speed of the shaft In the second case is
Option (A)
1/2N
Option (B)
1/ Ö2 N
Option(C)
N
Option(D)
2 N
Correct Option:
(C)
Question Solution:
Critical speed of shaft is independent of the eccentricity
question-answer-faq-2884