Automation System
An operating system:

is useless in most control applications
None of these
provides ability for other programmers to understand the software structure
All of these
can help reduce software development time

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Automation System
If the transient response of a system is overdamped:

the value of the output never stabilizes.
the value of the output exceeds the value of the input at times during the transient period.
All of these
the value of the output never exceeds the value of the input during the transient period.
None of these

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Automation System
A dc servo motor:

None of these
uses a tachometer for speed feedback
uses a variable dc voltage for speed control
All of these
can provide precise position control

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