Automation System
The two types of relays in a PC are:

All of these
an output relay and a control relay
a retentive relay and a non-retentive relay
a control relay and a retentive relay
None of these

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Automation System
The refresh-vector CRT uses which of the following techniques?

Creates images on the screen by scanning straight-line vectors between selected points.
The beam constantly travels across the screen to turn on/off a series of pixels.
Makes changes on the image by increasing the anode voltage.
Uses an electron gun to continuously flood the surface of the tube.
None of these

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Automation System
A discrete parts process is:

None of these
the same as a continuous process except a different controller must be used
(b) and (c)
often encountered in manufacturing
normally a repetitive series of operations

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