Automation System
Most current PC CAD systems are used for producing:

2-D drawings
solids modeling
circuit simulation
None of these
finite element analysis

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Automation System
What is proportional control?

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

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Automation System
A process controller:

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

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