Automation System
Which of these controller types is the most accurate?

Proportional plus integral
Proportional plus derivative
Three mode
Proportional
None of these

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Automation System
An encoder:

is used to send telegraph signals
None of these
converts a binary number to a decimal number.
can have only four keys
converts an input to a binary number

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Automation System
Microcomputer-based control sys-tems

will tend to increase in cost.
All of these
will just keep their present capability
None of these
will have more standard industrial application software available in the future.

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