Automation System
In the operation of a programmable controller:

mathematics cannot be performed
any latched data must be done using an external latching relay
All of these
None of these
all of the logic status is maintained in memory

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Automation System
Semiconductor devices:

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

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Automation System
Resolution in a CRT refers to:

the number of pixels in each square centimeter
the number of addressable elements on the tube
the speed at which the monitor can accept data from the computer
None of these
the number of phosphor dots that react when hit by the electron beam

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