Automation System
Stepping motors:

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

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Automation System
The main function(s) of computer in CAD is/are

To enhance the analytical and logical power of the designer
All of these
To serve as an extension to the memory of the designer
None of these
To relieve the designer from routine repetitious tasks.

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Automation System
A sequence controller:

is difficult to program
is a mechanical only controller
performs on/off control functions in relation to time.
None of these
is no longer in widespread use

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