Automation System
For a type 0 system, the steady-state:

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
(a) and (c)

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Automation System
If the transient response of a system is overdamped:

the value of the output exceeds the value of the input at times during the transient period.
the value of the output never exceeds the value of the input during the transient period.
All of these
None of these
the value of the output never stabilizes.

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Automation System
A dc servo motor:

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

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