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

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

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

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

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Automation System
A stepping motor;

None of these
is a good choice where continuous rotation is needed
has a speed proportional to voltage input
has a commutator
can index positional movement.

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