Automation System
Time proportioning control:

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

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Automation System
Resolution in a CRT refers to:

the speed at which the monitor can accept data from the computer
the number of phosphor dots that react when hit by the electron beam
the number of pixels in each square centimeter
None of these
the number of addressable elements on the tube

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Automation System
What is proportional control?

The gain is independent of offset error.
All of these
None of these
It has a discrete output for each error value
The controller output varies continuously over a range

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