Automation System
Productivity is defined as:

cost per day
None of these
output per man-hour of labour
number of items manufactured per day
cost per unit

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Automation System
A dc servo motor:

None of these
uses a tachometer for speed feedback
can provide precise position control
All of these
uses a variable dc voltage for speed control

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Automation System
Trend analysis:

None of these
is used only in financial planning
requires a very expensive system to implement
can improve control system response
is a brand new concept

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