Automation System
When one must sell a project to management, the most important document he or she can produce is a:

summary of the problem
None of these
method for financing the project
procedure for purchase
project evaluation

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Automation System
What is the process lag?

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

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Automation System
A solenoid:

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

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