Automation System
Which of these controller types is the most accurate?

Three mode
Proportional plus integral
None of these
Proportional
Proportional plus derivative

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

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

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Automation System
Ergonomics refers to:

None of these
the human aspect of the environment around the workstation as well as the workstation itself
the level of involvement the operator has with the workstation
the technology involved in the workstation itself
the cost relationship of the workstation versus productivity

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