Automation System
Four basic elements are required for an automated machine tool or production process. They are: input interface, memory, output interface and:

None of these
software
NC tape programming
computer graphics workstation
logic

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Automation System
Pressure sensors:

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

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