Automation System
The new industrial revolution has been caused by:

demand for higher wages
advances in electronics
None of these
the Vietnam War
social unrest

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Automation System
How is the integral mode implemented on a digital controller?

None of these
All of these
the digital controller cannot handle integral mode
the error signal is summed over a discrete time interval and accumulated by the controller
the error is divided into discrete amounts

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Automation System
Semiconductor devices:

have a very short infant mortality period
usually have a very short MTBF (mean time between failure)
are less reliable than electro¬mechanical components
None of these
All of these

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