Automation System
Which of the following method is used the results of a design analysis as a base for redesign decisions?

None of these
The iterative design method
The design selection method
The direct method
All of these

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

both (b) and (c)
results in a binary code as the final output
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

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Automation System
Numerical control:

is a method for controlling the operation of a machine by means of a set of instructions
applies only to milling machines
All of these
is a method for producing an exact number of parts per hour
None of these

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Automation System
Digital signals:

None of these
have a frequency measured in units of hertz
are assigned values of 1 or 0 depending on the voltage level
have a sinusoidal shape.
can have three possible levels

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