Automation System
A proportional plus integral contro-ller can:

None of these
both (b) and (c)
has no transient response
can increase the system type
can compensate for lag

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Automation System
An operating system:

is useless in most control applications
can help reduce software development time
provides ability for other programmers to understand the software structure
All of these
None of these

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Automation System
A venturi tube:

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

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