Automation System
Most industrial control applications:

can be done more reliably using solid-state methods
All of these
None of these
must have the process specified correctly to be successful
can be solved using more than one method of control

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Automation System
Programmable controllers:

(a) and (c) above
cannot perform functions other than relay logic
are widely used in many different industries
are programmed using relay ladder logic
None of these

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

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

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