Automation System
What is the process lag?

The time it takes for the mass of the process to respond to an input change.
None of these
The time it takes for the sensor to respond to a changed.
The lag in the error signal when the setpoint is changed.
All of these

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Automation System
What is proportional control?

The gain is independent of offset error.
None of these
It has a discrete output for each error value
The controller output varies continuously over a range
All of these

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Automation System
Semiconductor devices:

have a very short infant mortality period
All of these
None of these
usually have a very short MTBF (mean time between failure)
are less reliable than electro¬mechanical components

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