Automation System
Which of the following symbol modes are used to input of graphics to General CAD system?

Live and Rectangle mode
All of these
Arc and Circle mode
Dimension and Alphanumeric mode
None of these

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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)
None of these
has to be sampled at 1/2 the highest input frequency
results in a binary code as the final output

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