Automation System
Trend analysis:

is used only in financial planning
is a brand new concept
None of these
can improve control system response
requires a very expensive system to implement

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Automation System
The program execution time:

All of these
must be slower than the fastest mechanical operation that is to be controlled
will vary depending on the language used
cannot be changed once the program is written
None of these

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Automation System
A stepping motor;

is a good choice where continuous rotation is needed
has a commutator
can index positional movement.
has a speed proportional to voltage input
None of these

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