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

None of these
metamer
value
gray scale
shading

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Automation System
An aneroid barometer

is very unreliable
can measure only atmospheric pressure
can be used to measure gas or liquid flow rates
None of these
measures pressure by sensing deflection of an evacuated chambers.

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Automation System
Trend analysis:

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

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