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

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

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Automation System
Light sensors:

work in direct sunlight
never use infrared light as light source
cannot be used a s limit switches.
None of these
come in a wide variety of mounting styles

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