Automation System
Vision sensors:

None of these
will more closely match the capabilities of the human eye
will remain very costly
can not improve much in the next decade
All of these

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Automation System
There are several procedures you can implement to provide maximum security. The most important of these is:

do not allow unbonded service people to work on your equipment
do not leave training manuals unsecured
None of these
Verify the reputation of the people installing your system
run regular simulated tests using TARP (testing of Applications Recovery Planes)

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Automation System
Digital signals:

have a sinusoidal shape.
None of these
are assigned values of 1 or 0 depending on the voltage level
have a frequency measured in units of hertz
can have three possible levels

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Automation System
Semiconductor devices:

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

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