Automation System
Skipping every other line and picking up the skipped lines on the second pass is called:

refresh-vector
None of these
raster-scan
stroke writing
interlacing

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Automation System
Sensors:

will be much smarter and more sophisticated in the future
None of these
are not important in automation
are easily developed
probably will not improve over the next decade

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Automation System
What is the difference between integral and derivative control?

derivative control responds to a change in the rate of change in the error signal
derivative control does not eliminate offset error
integral control has slower response to an error signal.
All of these
None of these

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

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
All of these

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