Automation System
What is offset error?

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

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Automation System
The SKETCHPAD system

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

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Automation System
Trend analysis:

is used only in financial planning
can improve control system response
None of these
requires a very expensive system to implement
is a brand new concept

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Automation System
High-level languages:

cannot be used with automatic systems.
are "procedure-oriented"
are very difficult to use
require knowledge of the computer design
None of these

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