Automation System
Four basic elements are required for an automated machine tool or production process. They are: input interface, memory, output interface and:

NC tape programming
None of these
computer graphics workstation
software
logic

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Automation System
What is offset error?

the difference between the sensor input and the absolute sensed parameter.
the difference between the control setpoint value and the actual value.
the difference between the controller output and the setting of the manipulated variable.
None of these
All of these

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Automation System
Resolution in a CRT refers to:

None of these
the number of addressable elements on the tube
the number of phosphor dots that react when hit by the electron beam
the speed at which the monitor can accept data from the computer
the number of pixels in each square centimeter

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Automation System
A venturi tube:

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

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