Automation System
An aneroid barometer

can be used to measure gas or liquid flow rates
measures pressure by sensing deflection of an evacuated chambers.
can measure only atmospheric pressure
is very unreliable
None of these

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Automation System
What is proportional control?

The gain is independent of offset error.
The controller output varies continuously over a range
All of these
None of these
It has a discrete output for each error value

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

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

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