Answer the following statement(s) true (T) or false (F)

1. Ladder logic is a good choice for a programming language because it closely resembles the way circuits are hard-wired.
2. The EXAMINE OFF instruction is only logically true when the device referenced is ON, or open.
3. When the N.C. symbol is programmed in a ladder diagram, any address that is actually ON becomes logically true and power can flow.
4. The number of times an input device can be addressed and used in a programmed circuit is limited to eight.
5. There are many more applications and circuits that normally require two- or three-pole devices that now only require single-pole devices when programmed for a PLC.


1. True
2, False
3. False
4. False
5. True

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