Automation System
A dc servo motor:

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

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Automation System
One of the major benefits of using CAD in tool design is that:

product design represents approximately one-half the engineering costs
tool motions can be checked to see if there is interference between the tool and the object
None of these
there is better coordination in the materials-handling area
it simplifies the trial-and-error method

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