Automation System
Semiconductor devices:

usually have a very short MTBF (mean time between failure)
are less reliable than electro¬mechanical components
have a very short infant mortality period
None of these
All of these

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Automation System
If the transient response is under damped:

the present overshoot is zero
the value of the output will exceed the value of the input at times during the transient period
steady-state will be reached faster than if the system is overdamped
None of these
both a and b

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Automation System
Most industrial control applications:

None of these
All of these
can be done more reliably using solid-state methods
must have the process specified correctly to be successful
can be solved using more than one method of control

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