Automation System
What is proportional control?

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

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Automation System
Pressure sensors:

use the piezoresistive effect in strain gauge sensors
use capacitive variations to sense pressure
All of these
use an aneroid chamber with a variable resistance output
None of these

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