Automation System
How is the integral mode implemented on a digital controller?

None of these
the error is divided into discrete amounts
the error signal is summed over a discrete time interval and accumulated by the controller
All of these
the digital controller cannot handle integral mode

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Automation System
CAE and CAM are linked through:

NC tape programming and automated design
parts production and testing
assembly automation and tool production.
None of these
a common data base and communications system

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Automation System
Numerical control:

applies only to milling machines
is a method for producing an exact number of parts per hour
None of these
All of these
is a method for controlling the operation of a machine by means of a set of instructions

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