Automation System
What is offset error?

the difference between the sensor input and the absolute sensed parameter.
the difference between the controller output and the setting of the manipulated variable.
None of these
All of these
the difference between the control setpoint value and the actual value.

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Automation System
The SKETCHPAD system

is expensive because it is sophisticated and make demands on the power and resources of the computer.
None of these
consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.
is used for interactive Graphics
All of these

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Automation System
CAE and CAM are linked through:

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

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Automation System
Relay ladder logic is used in a PC because:

All of these
it is impossible to write a control program for a machine in any other logic
None of these
it is the best industrial control language ever developed.
most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use

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