Automation System
Trend analysis:

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

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Automation System
A solenoid:

is related to an aneroid
is spring operated
can be used only in de circuits
None of these
is widely used in industrial automation

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Automation System
A flip-flop:

(a) and (c)
remembers what was previously stored in it
None of these
is a sequential logic device
is a combinational logic device

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