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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Automation System
Time proportioning control:

cannot use a TM990 micro¬computer
a and b above.
is less efficient than normal PID control
can be used on a PM550 programmable process controller
None of these

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Automation System
If the transient response is under damped:

the present overshoot is zero
the value of the output will exceed the value of the input at times during the transient period
steady-state will be reached faster than if the system is overdamped
None of these
both a and b

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Automation System
Today, programmable controllers:

are more powerful then the first controllers on the market
can be cost effective even when replacing just a few relays
None of these
All of these
are relatively low cost compared with the original digital equipment available for industrial control

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