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

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

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Automation System
A process controller:

All of these
can interface to digital and analog I/O
can solve a PID process control equation easily
None of these
is useful in a continuous process control application

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Automation System
A solenoid:

can be used only in de circuits
is widely used in industrial automation
is spring operated
None of these
is related to an aneroid

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