Automation System
The axis of movement of a robot may include:

X-Y coordinate motion
elbow rotation
Wrist rotation
All of these
None of these

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Automation System
A semi-continuous operation means:

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

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Automation System
A solenoid:

None of these
can be used only in de circuits
is spring operated
is widely used in industrial automation
is related to an aneroid

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