Theory of Machine
A system in dynamic balance implies that

The system is also statically balanced
The system is critically damped
There is no critical speed in the system
There will absolutely no wear of bearings

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
For dynamic balancing of a shaft

The net couple due to the dynamic forces acting on the shaft is equal to zero
Both (A) and (B)
The net dynamic force acting on the shaft is equal to zero
None of these

ANSWER DOWNLOAD EXAMIANS APP