Automation System
For a type 1 system, the steady-state:

error for a step input is always zero
input for acceleration input is always non-zero
(a) and (c)
error for a velocity input is always zero
None of these

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Automation System
Sensors:

will be much smarter and more sophisticated in the future
probably will not improve over the next decade
are easily developed
are not important in automation
None of these

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Automation System
Numerical control:

is a method for producing an exact number of parts per hour
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
None of these

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