Because most momentary PB switches are limited to two positions (either at-rest or activated) in either a NO or an NC switch configuration and cannot be left in a third state somewhere in between these two states, the stacking of the switches in two or more rungs of a ladder diagram is normally shown as mechanically linked (broken line) without a ___________ ___________.
A) none of the answers
B) graph table
C) target table
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Answer:C
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