Automation System
Pressure sensors:

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

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Automation System
A continuous process is:

None of these
self-contained in that raw materials enter the process and an identifiable products exits the process.
used only with analog controllers.
used only for simple tasks
one that never shuts down

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