Automation System
The main activity(ies) of Designer in CAD is/are:

Organisation of design information
All of these
Control of the design process in information distribution.
None of these
Application of creativity, ingenuity, and experience.

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Automation System
A dc servo motor:

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

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