Which wrench speeds up the task by using interchangeable sockets?

• A. Hex key wrench
• B. Open-end wrench
• C. Socket wrench
• D. Backup wrench

Answer: (C)

Using interchangeable sockets with a ratcheting handle speeds up fastening tasks because you can swap to the right size quickly without changing tools, and you can keep turning with minimal movement. The socket wrench’s drive accepts a range of sockets, so you can cover multiple bolt sizes with one handle, which saves time as you work through a set of fasteners. The ratchet mechanism further speeds things up by allowing you to turn the fastener in tight spaces with short strokes, instead of having to reposition the tool after every partial turn. In contrast, a hex key wrench is limited to a single hex size and isn’t designed for rapid size changes; an open-end wrench uses fixed openings and requires more repositioning; a backup wrench is used to hold the fastener steady for another tool to apply torque, which is about stability rather than speeding up size changes.