Automation System
A semi-continuous operation means:

coffee breaks are allowed for the operator
the operation is continuous each shift, but stops between shifts
a computer is a required part of the machine
each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
None of these

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

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

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Automation System
A continuous process is:

None of these
used only for simple tasks
used only with analog controllers.
self-contained in that raw materials enter the process and an identifiable products exits the process.
one that never shuts down

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Automation System
Semiconductor devices:

usually have a very short MTBF (mean time between failure)
have a very short infant mortality period
All of these
are less reliable than electro¬mechanical components
None of these

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