Automation System
Three different aspects of colour are used to define specific colours. They are hue, saturation, and:

gray scale
metamer
value
shading
None of these

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

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

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