Automation System
A technique for displaying applications where complex 3-D geometric are required for the exteror shall of a product is called:

2-D modeling
surface modeling
None of these
3-D modeling
solid modeling

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Automation System
D/A (digital to analog) conversion:

must be fed through a filter to reproduce the original signal accurately
both (b) and (c)
has to be sampled at 1/2 the highest input frequency
None of these
results in a binary code as the final output

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