Automation System
When one must sell a project to management, the most important document he or she can produce is a:

project evaluation
method for financing the project
summary of the problem
procedure for purchase
None of these

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Automation System
What is proportional control?

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

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Automation System
A dc servo motor:

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

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