Which statement correctly describes a torque wrench's function?

• A. It measures and limits the torque applied to a fastener
• B. It cuts metal
• C. It chisel
• D. It threads bolts

Answer: (A)

A torque wrench is used to control the turning force applied to a fastener by measuring and limiting the torque to a set value. When the preset torque is reached, the tool signals (often with a click) so you can stop tightening, ensuring the fastener isn’t over- or under-tightened. This function is essential for maintaining joint integrity and avoiding damage to threads or components. It doesn’t cut metal, it doesn’t chisel, and it isn’t used to thread bolts; those are actions for other tools or processes, not for controlling fastening torque.