A chain can be taken apart and put back together by using a ______ without moving equipment on either end of the drive system.

• A. Master link
• B. Pin
• C. Sprocket
• D. Quick disconnect

Answer: (A)

This question is about how a chain can be taken apart and put back together without moving the drive ends. A master link provides a detachable connector that can be opened by removing its retaining clip, allowing the chain to split at that point, and then rejoined by reinstalling the master link. All of this can be done with the drive system left stationary, which is the key advantage for maintenance or replacement without realigning or shifting equipment. A pin would require driving a pin out, which is more cumbersome and can damage the chain if not done carefully. A sprocket is simply the gear wheel that the chain engages, not a joining method. A quick disconnect isn’t the standard means for joining or separating a drive-chain in this context. So the master link is the correct choice.