Automation System
Pressure sensors:

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

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Automation System
A semi-continuous operation means:

the operation is continuous each shift, but stops between shifts
each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
None of these
coffee breaks are allowed for the operator
a computer is a required part of the machine

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