Automation System
The two types of relays in a PC are:

a retentive relay and a non-retentive relay
All of these
None of these
an output relay and a control relay
a control relay and a retentive relay

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Automation System
Vision sensors:

will more closely match the capabilities of the human eye
can not improve much in the next decade
will remain very costly
None of these
All of these

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Automation System
Trend analysis:

is a brand new concept
can improve control system response
None of these
is used only in financial planning
requires a very expensive system to implement

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