Automation System
D/A (digital to analog) conversion:

results in a binary code as the final output
must be fed through a filter to reproduce the original signal accurately
has to be sampled at 1/2 the highest input frequency
None of these
both (b) and (c)

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Automation System
What is offset error?

None of these
the difference between the controller output and the setting of the manipulated variable.
All of these
the difference between the sensor input and the absolute sensed parameter.
the difference between the control setpoint value and the actual value.

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