Theory of Machine
Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts?

Applied mechanics
Kinetics
Mechanisms
Theory of machines

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Theory of Machine
For dynamic balancing of a shaft

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

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Theory of Machine
A system of masses rotating in different parallel planes is in dynamic balance if the

Resultant couple is equal to zero
Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero
Resultant force and resultant couple are both equal to zero
Resultant force is equal to zero

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