Automation System
Numerical control:

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

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Automation System
An aneroid barometer

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

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Automation System
In raster-scan colour monitors, colour can be intensified by:

None of these
having each electron gun controlled by separate signal
using an in-line gun arrangement with a solid metal mesh
grouping the phosphor dots in a circular pattern
having each electron gun controlled by a composite signal

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