Automation System
What two methods are available to build electronic continuous control?

All of these
None of these
Analog and digital
Analog and mechanical
Pneumatic and analog

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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
None of these
integral control has slower response to an error signal.
All of these

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Automation System
The program execution time:

must be slower than the fastest mechanical operation that is to be controlled
will vary depending on the language used
cannot be changed once the program is written
None of these
All of these

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