Automation System
Which of the following symbol modes are used to input of graphics to General CAD system?

Live and Rectangle mode
Arc and Circle mode
None of these
Dimension and Alphanumeric mode
All of these

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Automation System
Today, programmable controllers:

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

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Automation System
Pressure sensors:

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

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