$1.$ True or False: Dynamic balancing is only necessary for components that operate at very high speeds.

$2.$ True or False: In static balancing, the component needs to be rotated to measure the imbalance.

$3.$ True or False: Balancing weights can be added at any point on a rotor to correct imbalance.

$4.$ True or False: Counterweights are used in engines primarily to enhance power output.