Automation System
A flip-flop:

is a sequential logic device
remembers what was previously stored in it
(a) and (c)
None of these
is a combinational logic device

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Automation System
What is offset error?

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

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