Theory of machines - Engineering

Q1:

The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the

A unbalanced couples are caused only at higher speeds

B unbalanced forces are not dangerous at higher speeds

C effects of unbalances are proportional to the square of the speed

D effects of unbalances are directly proportional to the speed

ANS:C - effects of unbalances are proportional to the square of the speed

Explanation: No answer description is available.