Automation System
The main function(s) of computer in CAD is/are

All of these
None of these
To serve as an extension to the memory of the designer
To relieve the designer from routine repetitious tasks.
To enhance the analytical and logical power of the designer

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Automation System
Today, programmable controllers:

are relatively low cost compared with the original digital equipment available for industrial control
are more powerful then the first controllers on the market
can be cost effective even when replacing just a few relays
None of these
All of these

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Automation System
Pressure sensors:

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

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