Automation System
Stepping motors:

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

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Automation System
High-level languages:

require knowledge of the computer design
None of these
cannot be used with automatic systems.
are "procedure-oriented"
are very difficult to use

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Automation System
How is the integral mode implemented on a digital controller?

the error is divided into discrete amounts
the digital controller cannot handle integral mode
the error signal is summed over a discrete time interval and accumulated by the controller
None of these
All of these

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