Automation System
The program counter:

is where arithmetic is done in a computer.
counts the number of instructions that have been executed
None of these
decides which program to run
contains the address of the next instruction to be executed

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Automation System
Light sensors:

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

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Automation System
If the transient response is under damped:

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

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