Automation System
Most industrial control applications:

must have the process specified correctly to be successful
None of these
can be solved using more than one method of control
can be done more reliably using solid-state methods
All of these

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Automation System
An encoder:

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

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Automation System
Today, programmable controllers:

are relatively low cost compared with the original digital equipment available for industrial control
All of these
are more powerful then the first controllers on the market
can be cost effective even when replacing just a few relays
None of these

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