The three-position, centre-return, mushroom-head, push/pull operator is stacked with one set of NO contacts and a set of NC contacts ___

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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