Automation System
What is the difference between integral and derivative control?

derivative control responds to a change in the rate of change in the error signal
All of these
derivative control does not eliminate offset error
None of these
integral control has slower response to an error signal.

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Automation System
An encoder:

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

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Automation System
A dc servo motor:

can provide precise position control
All of these
None of these
uses a tachometer for speed feedback
uses a variable dc voltage for speed control

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