Automation System
Stepping motors:

can run at varying speeds
do not require commutators
can be built to index different amounts by changing the pole configuration
All of these
can run both clockwise and counterclockwise

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Automation System
If the transient response is under damped:

the value of the output will exceed the value of the input at times during the transient period
steady-state will be reached faster than if the system is overdamped
None of these
both a and b
the present overshoot is zero

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