Automation System
Advantages of robots include:

good return on investment and better company image
None of these
ability to withstand hazardous environments
All of these
increased productivity

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

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

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Automation System
Numerical control:

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

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Automation System
Stepping motors:

do not require commutators
All of these
can run both clockwise and counterclockwise
can be built to index different amounts by changing the pole configuration
can run at varying speeds

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