Which tool is identified as a line wrench?

• A. A tool used to grip and turn nuts and bolts, specifically in tight spaces.
• B. A device for measuring electrical current.
• C. A tool used for cutting hoses.
• D. A hammer and punch set

Answer: (A)

Line wrenches are designed to grip and turn nuts and bolts in tight spaces. This specialized shape lets you engage the hex of a line or flare-nut fitting without the wrench slipping or hitting adjacent tubing or hardware, which is a common scenario when working on brake, fuel, or hydraulic lines on a bus. That direct fit and careful contact make it the best match for the term line wrench. The other tools described are not about turning fasteners in constrained areas: measuring current is done with meters, cutting hoses uses a hose cutter, and a hammer and punch set serves for striking or aligning—not for turning line fittings.