What circular multi-contact connector employs a coupling ring that slides along the axis of the connector?

What circular multi-contact connector employs a coupling ring that slides along the axis of the connector?

• A. Push-Pull coupling
• B. Bayonet coupling
• C. Threaded coupling
• D. Screw coupling

Answer: (A)

The key idea is the way the two halves lock together: a coupling ring or sleeve that slides along the axis of the connector to mate and unmate. In push‑pull designs, you simply push to connect and pull to disconnect, with the axial sliding ring engaging internal latches as you go. This is fast and tool‑less, and it relies on the ring moving straight along the connector’s length. Bayonet-type connectors lock by twisting and engaging lugs, not by sliding a ring along the axis. Threaded or screw-type connectors use a coupling nut that advances along the axis as you rotate to engage threads, rather than an axial sliding ring.

The key idea is the way the two halves lock together: a coupling ring or sleeve that slides along the axis of the connector to mate and unmate. In push‑pull designs, you simply push to connect and pull to disconnect, with the axial sliding ring engaging internal latches as you go. This is fast and tool‑less, and it relies on the ring moving straight along the connector’s length.

Bayonet-type connectors lock by twisting and engaging lugs, not by sliding a ring along the axis. Threaded or screw-type connectors use a coupling nut that advances along the axis as you rotate to engage threads, rather than an axial sliding ring.