Automation System
In order to combat foreign competition, U.S. companies are:

seeking import tariffs
decreasing the salaries
ignoring the situation
None of these
automating

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Automation System
Direct Numerical Control means:

using several computers to control one large machine
using one computer to control several machines
complete elimination of a need for a human operator.
None of these
eliminating computers from the manufacturing process

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Automation System
What is proportional control?

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

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