Automation System
A flip-flop:

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

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Automation System
An aneroid barometer

is very unreliable
can be used to measure gas or liquid flow rates
measures pressure by sensing deflection of an evacuated chambers.
None of these
can measure only atmospheric pressure

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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.
the difference between the control setpoint value and the actual value.
All of these
the difference between the sensor input and the absolute sensed parameter.

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Automation System
If the transient response is under damped:

None of these
steady-state will be reached faster than if the system is overdamped
the value of the output will exceed the value of the input at times during the transient period
the present overshoot is zero
both a and b

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