Automation System
What is the process lag?

The time it takes for the mass of the process to respond to an input change.
The lag in the error signal when the setpoint is changed.
The time it takes for the sensor to respond to a changed.
None of these
All of these

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Automation System
Microcomputer-based control sys-tems

will just keep their present capability
All of these
will tend to increase in cost.
None of these
will have more standard industrial application software available in the future.

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

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

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Automation System
A venturi tube:

None of these
can be used to measure gas or liquid flow rates
is extremely difficult to use
is made only of metal
measures the presence of a liquid

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