Automation System
Which method is frequently used, especially in the early stages of design?

The design selection method
All of these
The iterative design method
The direct method
None of these

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Automation System
What is proportional control?

The controller output varies continuously over a range
The gain is independent of offset error.
All of these
It has a discrete output for each error value
None of these

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Automation System
A dc servo motor:

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

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