Automation System
How is the integral mode implemented using analog methods?

None of these
Op amp and resistors
Op amp and a capacitor
Op amp and an RC network to place the error voltage across the capacitor
All of these

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Automation System
An encoder:

None of these
is used to send telegraph signals
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
Sensors:

None of these
are easily developed
will be much smarter and more sophisticated in the future
probably will not improve over the next decade
are not important in automation

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