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1. The abbreviations NO (normally open) and NC (normally closed) represent the electrica state of switch contacts when: A. power is applied. B. power is
1. The abbreviations NO (normally open) and NC (normally closed) represent the electrica state of switch contacts when: A. power is applied. B. power is not applied. C. the switch is actuated. D. the switch is not actuated. 2. A programmed XIO instruction: A. with a bit status of 1 will not have logic continuity B. is examined for an OFF condition. C. is examined for an ON condition. D. both a and b.
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