Automation System
VLSI (very large scale integrated circuits) logic:

will result in lower cost, higher capability electronic equipment
will not be available in this decade
None of these
All of these
means more costly electronic products in the future

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Automation System
Time proportioning control:

cannot use a TM990 micro¬computer
a and b above.
is less efficient than normal PID control
can be used on a PM550 programmable process controller
None of these

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

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

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