Automation System
How is the integral mode implemented using analog methods?

Op amp and resistors
Op amp and a capacitor
Op amp and an RC network to place the error voltage across the capacitor
None of these
All of these

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Automation System
The program execution time:

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

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