Automation System
Pressure sensors:

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

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Automation System
High-level languages:

are very difficult to use
require knowledge of the computer design
None of these
are "procedure-oriented"
cannot be used with automatic systems.

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Automation System
Most industrial control applications:

All of these
can be solved using more than one method of control
can be done more reliably using solid-state methods
None of these
must have the process specified correctly to be successful

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