Automation System
Which of these controller types is the most accurate?

Proportional plus integral
Proportional plus derivative
Three mode
Proportional
None of these

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Automation System
Pressure sensors:

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

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Automation System
CAE and CAM are linked through:

None of these
parts production and testing
assembly automation and tool production.
a common data base and communications system
NC tape programming and automated design

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