Automation System
A stepping motor;

can index positional movement.
has a speed proportional to voltage input
has a commutator
None of these
is a good choice where continuous rotation is needed

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Automation System
Resolution in a CRT refers to:

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

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Automation System
What is offset error?

the difference between the control setpoint value and the actual value.
All of these
the difference between the sensor input and the absolute sensed parameter.
None of these
the difference between the controller output and the setting of the manipulated variable.

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