Automation System
Microcomputer-based control sys-tems

All of these
None of these
will just keep their present capability
will tend to increase in cost.
will have more standard industrial application software available in the future.

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Automation System
An encoder:

converts a binary number to a decimal number.
can have only four keys
is used to send telegraph signals
None of these
converts an input to a binary number

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Automation System
What is proportional control?

All of these
The controller output varies continuously over a range
The gain is independent of offset error.
It has a discrete output for each error value
None of these

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Automation System
Light sensors:

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

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