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
What is the process lag?

The time it takes for the mass of the process to respond to an input change.
The time it takes for the sensor to respond to a changed.
All of these
The lag in the error signal when the setpoint is changed.
None of these

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Automation System
High-level languages:

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

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