Which is the primary use of a torque wrench?

Which is the primary use of a torque wrench?

• A. Apply torque rotation of force to fasteners.
• B. Mark starting holes.
• C. Measure thickness.
• D. Display pressure.

Answer: (A)

The main idea here is using a tool to apply a precise amount of rotational force to fasteners. A torque wrench is designed to tighten bolts or nuts to a specific torque value, giving you controlled, repeatable clamping force. This prevents threads from being damaged by overtightening and avoids loose joints from undertightening. Some torque wrenches alert you when the preset torque is reached—by a click, a beam deflection, or a digital readout—so you know you’ve hit the correct specification. Other tasks described don’t fit this tool’s purpose: marking starting holes is done with a center punch or scribe, measuring thickness with calipers or micrometers, and displaying pressure with a pressure gauge or sensor.

The main idea here is using a tool to apply a precise amount of rotational force to fasteners. A torque wrench is designed to tighten bolts or nuts to a specific torque value, giving you controlled, repeatable clamping force. This prevents threads from being damaged by overtightening and avoids loose joints from undertightening. Some torque wrenches alert you when the preset torque is reached—by a click, a beam deflection, or a digital readout—so you know you’ve hit the correct specification.

Other tasks described don’t fit this tool’s purpose: marking starting holes is done with a center punch or scribe, measuring thickness with calipers or micrometers, and displaying pressure with a pressure gauge or sensor.