The three-position, centre-return, mushroom-head, push/pull operator is stacked with one set of NO contacts and a set of NC contacts.
When the push/pull operator is pulled, the ___________ switch contacts are allowed to fully close; the ___________ switch contacts are allowed to fully open.
A) NO; NO
B) NC; NO
C) NO; NC
D) NC; NC
Show Answer
Answer:B
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