Automation System
Most current PC CAD systems are used for producing:

solids modeling
finite element analysis
None of these
circuit simulation
2-D drawings

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Automation System
A semi-continuous operation means:

coffee breaks are allowed for the operator
the operation is continuous each shift, but stops between shifts
None of these
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.

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Automation System
Direct Numerical Control means:

eliminating computers from the manufacturing process
using several computers to control one large machine
using one computer to control several machines
complete elimination of a need for a human operator.
None of these

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